Database access/mapping
Hello,
I just started investigating coherence and have come across this question:
How does Coherence do the DB access when synchronizing with the DB? Does it generate the SQL itself, or use any other product/framework? How does it cooperate with frameworks we may already be using?
thanks,
Christian Sell
Hi Christian,
Coherence can use any existing framework (or SQL) to perform persistence. The way it works is for Coherence to 'talk' to an underlying datastore (a DB for instance) the customer needs to write an implementation of the com.tangosol.net.cache.CacheStore. Then specify that CacheStore in the cache configuration xml file. Then when the application asks the cache for X, and X is not already in the cache, Coherence will automatically go through the CacheStore, place the resulting object in the cache (for future use), and return the object to the application.
Updates to the cached data (X) can either be written (through the CacheStore) synchronously (write-through) or asynchronously (write-behind).
An example CacheStore implementation can be found here.
Later,
Rob Misek
Tangosol, Inc.
Similar Messages
-
Frequent Database Access through Java Mapping ?
I have to implement a Java Mapping Program which will require frequent database Access to compare and read table data from some other data base .
What is the most optimum procedure to implement it ?
Should i make a jdbc call every time from the code or should i use EJB(Session beans + Entity beans)...
or any other process besides these 2 to acheive maximum performance
Please Suggest
regards
Nilesh Taunk.Hi Nilesh,
I would suggest you to use XI DB Lookup API's for accessing Database. Eventhough it will not give you maximum performance, it will be very easy to change the configuration parameters in JDBC Adapter (No need for hardcoding user id/password/Driver details etc.) and you can refer the same in your Lookup API's.
Please refer the link: <a href="/people/siva.maranani/blog/2005/08/23/lookup146s-in-xi-made-simpler Weblog</a>
Regards,
Ananth -
Hi All,
I'm still struggling with the same cube and this is my 3rd post and once i fix some thing the other breaks. Please forgive me. When i process my cube i'm getting the error:
Errors in the back-end database access module. OLE DB was unable to convert a value to the data type requested for column 5.
My question is when the error says column 5 (is it the column 5 in the DSV?) or is it the column 5 in the DIMENSION list?
My next question is the DSV Query works perfectly fine , so why this error in cube? This is what i have in the query in DSV.
Please need help. In the below query both the column 5 (ArEASSIGNED TO VENDOR) in the CUBE and underlying table have the same data type and length VARCHAR(4000). Why is the process failing still?
SELECT [High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[compliancejoin]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_0],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[mowingsector]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_1],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[caseclosedflag]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_2],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casehasvendorinfo]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_3],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[mowingstatus]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_4],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[assignedtovendor]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_5],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[reassignedtovendor]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_6],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[currentvendor]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_7],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[invoiced]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSInvoiced0_8],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[invoicedstatus]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_9],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casecloseddateid]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_10],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[assignedtovendordateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_11],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[reassigneddateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_12],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[currentassigneddateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_13],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[mowingduedateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_14],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[vendormoweddateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_15],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[captypename] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_16],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casetype] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSCaseType0_17],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casenumbersubgroup] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_18],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casetownship] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_19],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casestatus] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSCaseStatus0_20],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[caseopendateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_21],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casereferredtolegalflag]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_22],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casemacinitiatedflag] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_23],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[caseconversionstatusdesc]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_24],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[reasonforinvestigation] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_25],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[investigationopendateid]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_26],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[receiveddateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_27],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[assigned_department_staff]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_28],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[caseinitiator] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_29],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[vendorinvoiceamount] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_30],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[inspection_result] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_31],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[reason_for_complaint] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_32],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[vendor_action] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_33],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[complaint_source] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_34],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[contractcompliancevendor]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_35],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[invoicedstatusdateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_36],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[date_of_complaint_id] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_37],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[date_of_inspection_id] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_38],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casenumber] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSCaseNumber0_39],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[parcelnumber] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_40],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[row_index] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSROW_INDEX0_41]
FROM (SELECT CASE Isnumeric(
accela_staging.dbo.fact_highweedsandgrassdetails.vendorinvoiceamount)
WHEN 1 THEN Cast(
fact_highweedsandgrassdetails.vendorinvoiceamount AS
VARCHAR(
10))
END AS
Total_Dollar_Amount,
fact_highweedsandgrassdetails.casenumber,
fact_highweedsandgrassdetails.row_index,
fact_highweedsandgrassdetails.mowingsector,
fact_highweedsandgrassdetails.caseclosedflag,
fact_highweedsandgrassdetails.casecloseddateid,
fact_highweedsandgrassdetails.maccomments,
fact_highweedsandgrassdetails.lastfeeinvoicedateid,
fact_highweedsandgrassdetails.casehasvendorinfo,
fact_highweedsandgrassdetails.mowingstatus,
fact_highweedsandgrassdetails.receiveddateid,
fact_highweedsandgrassdetails.assignedtovendordateid,
fact_highweedsandgrassdetails.assignedtovendor,
fact_highweedsandgrassdetails.reassigneddateid,
fact_highweedsandgrassdetails.reassignedtovendor,
fact_highweedsandgrassdetails.currentvendor,
fact_highweedsandgrassdetails.currentassigneddateid,
fact_highweedsandgrassdetails.mowingduedateid,
fact_highweedsandgrassdetails.vendormoweddateid,
fact_highweedsandgrassdetails.invoiced,
fact_highweedsandgrassdetails.invoicedstatus,
fact_highweedsandgrassdetails.invoicedstatusdateid,
fact_highweedsandgrassdetails.vendorinvoicenumber,
fact_highweedsandgrassdetails.vendorcomments,
fact_casedetails.captypename,
fact_casedetails.casenumbersubgroup,
fact_casedetails.casetype,
fact_casedetails.township AS
CaseTownship,
fact_casedetails.casestatus,
fact_casedetails.caseopendateid,
fact_casedetails.referredtolegalflag AS
CaseReferredToLegalFlag,
fact_casedetails.macinitiatedflag AS
CaseMACInitiatedFlag,
fact_casedetails.conversionstatusdesc AS
CaseConversionStatusDesc,
fact_casedetails.assignedstaff AS
CaseAssignedStaff,
fact_casedetails.completedstaff AS
CaseCompletedStaff,
fact_casedetails.closedbystaff AS
CaseClosedByStaff,
fact_casedetails.initiator AS
CaseInitiator,
fact_casedetails.reasonforinvestigation,
fact_casedetails.primaryaddress,
fact_casedetails.parcelnumber,
Cast(Datediff([day],
fact_highweedsandgrassdetails.receiveddatetime,
COALESCE (fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.recordimportdatetime)) AS
DECIMAL(6, 2))
AS
DaysOpen,
Cast(Datediff([day],
fact_highweedsandgrassdetails.receiveddatetime,
COALESCE
(fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.recordimportdatetime)) AS
NUMERIC(9, 2))
* 24 AS
HoursOpenToMow,
Cast(Datediff([day],
fact_highweedsandgrassdetails.assignedtovendordate,
COALESCE
(fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.recordimportdatetime)) AS
NUMERIC(9, 2))
* 24 AS
HoursAssignedToMow,
CASE
WHEN mowingstatus = 'Mowed'
OR mowingstatus = 'Closed' THEN 1
ELSE 0
END AS
NumberComplete,
fact_highweedsandgrassdetails.recordimportdatetime,
fact_casedetails.macsiebelnumber,
fact_highweedsandgrassdetails.mowingduedate,
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.lastfeeinvoicedate,
fact_highweedsandgrassdetails.investigationopendatetime,
fact_highweedsandgrassdetails.investigationopendate,
fact_highweedsandgrassdetails.investigationopendateid,
Cast(Datediff([day],
fact_highweedsandgrassdetails.investigationopendatetime,
CASE
WHEN
( vendormoweddatetime IS NOT NULL
AND vendormoweddatetime <=
fact_highweedsandgrassdetails.casecloseddate ) THEN
fact_highweedsandgrassdetails.vendormoweddatetime
ELSE
CASE
WHEN (
fact_highweedsandgrassdetails.casecloseddate IS
NOT NULL
AND fact_highweedsandgrassdetails.casecloseddate
<=
fact_highweedsandgrassdetails.recordimportdatetime )
THEN
fact_highweedsandgrassdetails.casecloseddate
ELSE fact_highweedsandgrassdetails.recordimportdatetime
END
END) AS NUMERIC(9, 2)) * 24 AS
AbatementDurationHoursOLD,
Cast(Datediff([day],
fact_highweedsandgrassdetails.investigationopendatetime,
CASE
WHEN
COALESCE (vendormoweddatetime,
fact_highweedsandgrassdetails.casecloseddate) IS
NOT NULL THEN COALESCE (vendormoweddatetime,
fact_highweedsandgrassdetails.casecloseddate)
ELSE
CASE
WHEN ( fact_highweedsandgrassdetails.casecloseddate IS NOT NULL
AND fact_highweedsandgrassdetails.casecloseddate <=
fact_highweedsandgrassdetails.recordimportdatetime ) THEN
fact_highweedsandgrassdetails.casecloseddate
ELSE fact_highweedsandgrassdetails.recordimportdatetime
END
END) AS NUMERIC(9, 2)) * 24 AS
AbatementDurationHours,
fact_casedetails.assigneddepartment,
COALESCE (fact_casedetails.assignedstaff, '[null]')
+ '/'
+ COALESCE (fact_casedetails.assigneddepartment, '[null]') AS
Assigned_Department_Staff,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.receiveddatetime,
fact_highweedsandgrassdetails.assignedtovendordate,
fact_highweedsandgrassdetails.vendorinvoiceamount,
fact_highweedsandgrassdetails.invoicedstatusdate,
fact_highweedsandgrassdetails.complaint_source,
fact_highweedsandgrassdetails.inspection_result,
fact_highweedsandgrassdetails.reason_for_complaint,
fact_highweedsandgrassdetails.contractcompliancevendor,
fact_highweedsandgrassdetails.vendor_action,
fact_highweedsandgrassdetails.date_of_complaint_id,
fact_highweedsandgrassdetails.date_of_inspection_id,
CONVERT(INT, Replace(Replace(fact_highweedsandgrassdetails.casenumber,
'HWG', 0)
, '-', 0)) AS compliancejoin,
fact_highweedsandgrassdetails.maccomments AS Expr1,
dbo.dim_highweedscensustracts.b1_census_tract
FROM dbo.fact_highweedsandgrassdetails
INNER JOIN dbo.fact_casedetails
ON fact_highweedsandgrassdetails.casenumber =
fact_casedetails.casenumber
INNER JOIN dbo.dim_highweedscensustracts
ON fact_highweedsandgrassdetails.casenumber =
dbo.dim_highweedscensustracts.casenumber
GROUP BY fact_highweedsandgrassdetails.casenumber,
fact_highweedsandgrassdetails.row_index,
fact_highweedsandgrassdetails.mowingsector,
fact_highweedsandgrassdetails.caseclosedflag,
fact_highweedsandgrassdetails.casecloseddateid,
fact_highweedsandgrassdetails.maccomments,
fact_highweedsandgrassdetails.lastfeeinvoicedateid,
fact_highweedsandgrassdetails.casehasvendorinfo,
fact_highweedsandgrassdetails.mowingstatus,
fact_highweedsandgrassdetails.receiveddateid,
fact_highweedsandgrassdetails.assignedtovendordateid,
fact_highweedsandgrassdetails.assignedtovendor,
fact_highweedsandgrassdetails.reassigneddateid,
fact_highweedsandgrassdetails.reassignedtovendor,
fact_highweedsandgrassdetails.currentvendor,
fact_highweedsandgrassdetails.currentassigneddateid,
fact_highweedsandgrassdetails.mowingduedateid,
fact_highweedsandgrassdetails.vendormoweddateid,
fact_highweedsandgrassdetails.invoiced,
fact_highweedsandgrassdetails.invoicedstatus,
fact_highweedsandgrassdetails.invoicedstatusdateid,
fact_highweedsandgrassdetails.vendorinvoicenumber,
fact_highweedsandgrassdetails.vendorcomments,
fact_casedetails.captypename,
fact_casedetails.casenumbersubgroup,
fact_casedetails.casetype,
fact_casedetails.township,
fact_casedetails.casestatus,
fact_casedetails.caseopendateid,
fact_casedetails.referredtolegalflag,
fact_casedetails.macinitiatedflag,
fact_casedetails.conversionstatusdesc,
fact_casedetails.assignedstaff,
fact_casedetails.completedstaff,
fact_casedetails.closedbystaff,
fact_casedetails.initiator,
fact_casedetails.reasonforinvestigation,
fact_casedetails.primaryaddress,
fact_casedetails.parcelnumber,
fact_highweedsandgrassdetails.vendormoweddatetime,
Cast(Datediff([day],
fact_highweedsandgrassdetails.receiveddatetime,
COALESCE (
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.recordimportdatetime))
AS
NUMERIC(9, 2)),
Cast(Datediff([day],
fact_highweedsandgrassdetails.receiveddatetime,
COALESCE (
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.recordimportdatetime))
AS
NUMERIC(9, 2)),
Cast(Datediff([day],
fact_highweedsandgrassdetails.assignedtovendordate,
COALESCE (
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.recordimportdatetime))
AS
NUMERIC(9, 2)),
CASE
WHEN mowingstatus = 'Mowed'
OR mowingstatus = 'Closed' THEN 1
ELSE 0
END,
fact_highweedsandgrassdetails.recordimportdatetime,
fact_casedetails.macsiebelnumber,
fact_highweedsandgrassdetails.mowingduedate,
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.lastfeeinvoicedate,
fact_highweedsandgrassdetails.investigationopendatetime,
fact_highweedsandgrassdetails.investigationopendate,
fact_highweedsandgrassdetails.investigationopendateid,
Cast(Datediff([day],
fact_highweedsandgrassdetails.investigationopendatetime,
CASE
WHEN
( vendormoweddatetime IS NOT NULL
AND vendormoweddatetime <=
fact_highweedsandgrassdetails.casecloseddate ) THEN
fact_highweedsandgrassdetails.vendormoweddatetime
ELSE
CASE
WHEN (
fact_highweedsandgrassdetails.casecloseddate
IS NOT NULL
AND
fact_highweedsandgrassdetails.casecloseddate <=
fact_highweedsandgrassdetails.recordimportdatetime )
THEN
fact_highweedsandgrassdetails.casecloseddate
ELSE
fact_highweedsandgrassdetails.recordimportdatetime
END
END) AS NUMERIC(9, 2)),
Cast(Datediff(ss,
fact_highweedsandgrassdetails.investigationopendatetime,
CASE
WHEN
COALESCE (vendormoweddatetime,
fact_highweedsandgrassdetails.casecloseddate) IS
NOT NULL THEN COALESCE (vendormoweddatetime,
fact_highweedsandgrassdetails.casecloseddate)
ELSE
CASE
WHEN
( fact_highweedsandgrassdetails.casecloseddate IS NOT NULL
AND fact_highweedsandgrassdetails.casecloseddate <=
fact_highweedsandgrassdetails.recordimportdatetime ) THEN
fact_highweedsandgrassdetails.casecloseddate
ELSE fact_highweedsandgrassdetails.recordimportdatetime
END
END) AS NUMERIC(18, 2)) * 60,
fact_casedetails.assigneddepartment,
COALESCE (fact_casedetails.assignedstaff, '[null]')
+ '/'
+ COALESCE (fact_casedetails.assigneddepartment, '[null]'),
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.receiveddatetime,
fact_highweedsandgrassdetails.assignedtovendordate,
fact_highweedsandgrassdetails.vendorinvoiceamount,
fact_highweedsandgrassdetails.invoicedstatusdate,
fact_highweedsandgrassdetails.complaint_source,
fact_highweedsandgrassdetails.inspection_result,
fact_highweedsandgrassdetails.reason_for_complaint,
fact_highweedsandgrassdetails.contractcompliancevendor,
fact_highweedsandgrassdetails.vendor_action,
fact_highweedsandgrassdetails.date_of_complaint_id,
fact_highweedsandgrassdetails.date_of_inspection_id,
CONVERT(INT, Replace(
Replace(fact_highweedsandgrassdetails.casenumber, 'HWG', 0)
, '-', 0)),
fact_highweedsandgrassdetails.maccomments,
dbo.dim_highweedscensustracts.b1_census_tract) AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS]
ORDER BY [High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[compliancejoin]
ASC
SVI just counted the columns from the top:
1) compliancejoin, 2) mowingsector, 3) caseclosedflag, 4) casehasvendorinfo, 5) mowingstatus, 6) assignedtovendor.
I see now that your subject line talks about column 6, but you say column 5 in body of your original post.
I don't know anything about cubes, but apparently there is some mapping problem when you run it from SSAS. (I assume it is SSAS, a part of the product I'm entirely ignorant of.) I figured that if you had got tripped by the zero-based numbering, you
might be staring on the wrong column.
Erland Sommarskog, SQL Server MVP, [email protected] -
Hi All,
I'm still struggling with the same cube and this is my 3rd post and once i fix some thing the other breaks. Please forgive me. When i process my cube i'm getting the error:
Errors in the back-end database access module. OLE DB was unable to convert a value to the data type requested for column 5.
My question is when the error says column 5 (is it the column 5 in the DSV?) or is it the column 5 in the DIMENSION list?
My next question is the DSV Query works perfectly fine , so why this error in cube? This is what i have in the query in DSV.
Please need help. In the below query both the column 5 (ArEASSIGNED TO VENDOR) in the CUBE and underlying table have the same data type and length VARCHAR(4000). Why is the process failing still?
SELECT [High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[compliancejoin]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_0],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[mowingsector]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_1],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[caseclosedflag]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_2],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casehasvendorinfo]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_3],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[mowingstatus]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_4],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[assignedtovendor]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_5],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[reassignedtovendor]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_6],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[currentvendor]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_7],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[invoiced]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSInvoiced0_8],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[invoicedstatus]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_9],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casecloseddateid]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_10],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[assignedtovendordateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_11],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[reassigneddateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_12],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[currentassigneddateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_13],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[mowingduedateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_14],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[vendormoweddateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_15],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[captypename] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_16],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casetype] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSCaseType0_17],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casenumbersubgroup] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_18],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casetownship] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_19],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casestatus] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSCaseStatus0_20],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[caseopendateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_21],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casereferredtolegalflag]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_22],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casemacinitiatedflag] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_23],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[caseconversionstatusdesc]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_24],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[reasonforinvestigation] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_25],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[investigationopendateid]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_26],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[receiveddateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_27],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[assigned_department_staff]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_28],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[caseinitiator] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_29],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[vendorinvoiceamount] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_30],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[inspection_result] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_31],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[reason_for_complaint] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_32],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[vendor_action] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_33],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[complaint_source] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_34],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[contractcompliancevendor]
AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_35],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[invoicedstatusdateid] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_36],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[date_of_complaint_id] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_37],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[date_of_inspection_id] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_38],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[casenumber] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSCaseNumber0_39],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[parcelnumber] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS0_40],
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[row_index] AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTSROW_INDEX0_41]
FROM (SELECT CASE Isnumeric(
accela_staging.dbo.fact_highweedsandgrassdetails.vendorinvoiceamount)
WHEN 1 THEN Cast(
fact_highweedsandgrassdetails.vendorinvoiceamount AS
VARCHAR(
10))
END AS
Total_Dollar_Amount,
fact_highweedsandgrassdetails.casenumber,
fact_highweedsandgrassdetails.row_index,
fact_highweedsandgrassdetails.mowingsector,
fact_highweedsandgrassdetails.caseclosedflag,
fact_highweedsandgrassdetails.casecloseddateid,
fact_highweedsandgrassdetails.maccomments,
fact_highweedsandgrassdetails.lastfeeinvoicedateid,
fact_highweedsandgrassdetails.casehasvendorinfo,
fact_highweedsandgrassdetails.mowingstatus,
fact_highweedsandgrassdetails.receiveddateid,
fact_highweedsandgrassdetails.assignedtovendordateid,
fact_highweedsandgrassdetails.assignedtovendor,
fact_highweedsandgrassdetails.reassigneddateid,
fact_highweedsandgrassdetails.reassignedtovendor,
fact_highweedsandgrassdetails.currentvendor,
fact_highweedsandgrassdetails.currentassigneddateid,
fact_highweedsandgrassdetails.mowingduedateid,
fact_highweedsandgrassdetails.vendormoweddateid,
fact_highweedsandgrassdetails.invoiced,
fact_highweedsandgrassdetails.invoicedstatus,
fact_highweedsandgrassdetails.invoicedstatusdateid,
fact_highweedsandgrassdetails.vendorinvoicenumber,
fact_highweedsandgrassdetails.vendorcomments,
fact_casedetails.captypename,
fact_casedetails.casenumbersubgroup,
fact_casedetails.casetype,
fact_casedetails.township AS
CaseTownship,
fact_casedetails.casestatus,
fact_casedetails.caseopendateid,
fact_casedetails.referredtolegalflag AS
CaseReferredToLegalFlag,
fact_casedetails.macinitiatedflag AS
CaseMACInitiatedFlag,
fact_casedetails.conversionstatusdesc AS
CaseConversionStatusDesc,
fact_casedetails.assignedstaff AS
CaseAssignedStaff,
fact_casedetails.completedstaff AS
CaseCompletedStaff,
fact_casedetails.closedbystaff AS
CaseClosedByStaff,
fact_casedetails.initiator AS
CaseInitiator,
fact_casedetails.reasonforinvestigation,
fact_casedetails.primaryaddress,
fact_casedetails.parcelnumber,
Cast(Datediff([day],
fact_highweedsandgrassdetails.receiveddatetime,
COALESCE (fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.recordimportdatetime)) AS
DECIMAL(6, 2))
AS
DaysOpen,
Cast(Datediff([day],
fact_highweedsandgrassdetails.receiveddatetime,
COALESCE
(fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.recordimportdatetime)) AS
NUMERIC(9, 2))
* 24 AS
HoursOpenToMow,
Cast(Datediff([day],
fact_highweedsandgrassdetails.assignedtovendordate,
COALESCE
(fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.recordimportdatetime)) AS
NUMERIC(9, 2))
* 24 AS
HoursAssignedToMow,
CASE
WHEN mowingstatus = 'Mowed'
OR mowingstatus = 'Closed' THEN 1
ELSE 0
END AS
NumberComplete,
fact_highweedsandgrassdetails.recordimportdatetime,
fact_casedetails.macsiebelnumber,
fact_highweedsandgrassdetails.mowingduedate,
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.lastfeeinvoicedate,
fact_highweedsandgrassdetails.investigationopendatetime,
fact_highweedsandgrassdetails.investigationopendate,
fact_highweedsandgrassdetails.investigationopendateid,
Cast(Datediff([day],
fact_highweedsandgrassdetails.investigationopendatetime,
CASE
WHEN
( vendormoweddatetime IS NOT NULL
AND vendormoweddatetime <=
fact_highweedsandgrassdetails.casecloseddate ) THEN
fact_highweedsandgrassdetails.vendormoweddatetime
ELSE
CASE
WHEN (
fact_highweedsandgrassdetails.casecloseddate IS
NOT NULL
AND fact_highweedsandgrassdetails.casecloseddate
<=
fact_highweedsandgrassdetails.recordimportdatetime )
THEN
fact_highweedsandgrassdetails.casecloseddate
ELSE fact_highweedsandgrassdetails.recordimportdatetime
END
END) AS NUMERIC(9, 2)) * 24 AS
AbatementDurationHoursOLD,
Cast(Datediff([day],
fact_highweedsandgrassdetails.investigationopendatetime,
CASE
WHEN
COALESCE (vendormoweddatetime,
fact_highweedsandgrassdetails.casecloseddate) IS
NOT NULL THEN COALESCE (vendormoweddatetime,
fact_highweedsandgrassdetails.casecloseddate)
ELSE
CASE
WHEN ( fact_highweedsandgrassdetails.casecloseddate IS NOT NULL
AND fact_highweedsandgrassdetails.casecloseddate <=
fact_highweedsandgrassdetails.recordimportdatetime ) THEN
fact_highweedsandgrassdetails.casecloseddate
ELSE fact_highweedsandgrassdetails.recordimportdatetime
END
END) AS NUMERIC(9, 2)) * 24 AS
AbatementDurationHours,
fact_casedetails.assigneddepartment,
COALESCE (fact_casedetails.assignedstaff, '[null]')
+ '/'
+ COALESCE (fact_casedetails.assigneddepartment, '[null]') AS
Assigned_Department_Staff,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.receiveddatetime,
fact_highweedsandgrassdetails.assignedtovendordate,
fact_highweedsandgrassdetails.vendorinvoiceamount,
fact_highweedsandgrassdetails.invoicedstatusdate,
fact_highweedsandgrassdetails.complaint_source,
fact_highweedsandgrassdetails.inspection_result,
fact_highweedsandgrassdetails.reason_for_complaint,
fact_highweedsandgrassdetails.contractcompliancevendor,
fact_highweedsandgrassdetails.vendor_action,
fact_highweedsandgrassdetails.date_of_complaint_id,
fact_highweedsandgrassdetails.date_of_inspection_id,
CONVERT(INT, Replace(Replace(fact_highweedsandgrassdetails.casenumber,
'HWG', 0)
, '-', 0)) AS compliancejoin,
fact_highweedsandgrassdetails.maccomments AS Expr1,
dbo.dim_highweedscensustracts.b1_census_tract
FROM dbo.fact_highweedsandgrassdetails
INNER JOIN dbo.fact_casedetails
ON fact_highweedsandgrassdetails.casenumber =
fact_casedetails.casenumber
INNER JOIN dbo.dim_highweedscensustracts
ON fact_highweedsandgrassdetails.casenumber =
dbo.dim_highweedscensustracts.casenumber
GROUP BY fact_highweedsandgrassdetails.casenumber,
fact_highweedsandgrassdetails.row_index,
fact_highweedsandgrassdetails.mowingsector,
fact_highweedsandgrassdetails.caseclosedflag,
fact_highweedsandgrassdetails.casecloseddateid,
fact_highweedsandgrassdetails.maccomments,
fact_highweedsandgrassdetails.lastfeeinvoicedateid,
fact_highweedsandgrassdetails.casehasvendorinfo,
fact_highweedsandgrassdetails.mowingstatus,
fact_highweedsandgrassdetails.receiveddateid,
fact_highweedsandgrassdetails.assignedtovendordateid,
fact_highweedsandgrassdetails.assignedtovendor,
fact_highweedsandgrassdetails.reassigneddateid,
fact_highweedsandgrassdetails.reassignedtovendor,
fact_highweedsandgrassdetails.currentvendor,
fact_highweedsandgrassdetails.currentassigneddateid,
fact_highweedsandgrassdetails.mowingduedateid,
fact_highweedsandgrassdetails.vendormoweddateid,
fact_highweedsandgrassdetails.invoiced,
fact_highweedsandgrassdetails.invoicedstatus,
fact_highweedsandgrassdetails.invoicedstatusdateid,
fact_highweedsandgrassdetails.vendorinvoicenumber,
fact_highweedsandgrassdetails.vendorcomments,
fact_casedetails.captypename,
fact_casedetails.casenumbersubgroup,
fact_casedetails.casetype,
fact_casedetails.township,
fact_casedetails.casestatus,
fact_casedetails.caseopendateid,
fact_casedetails.referredtolegalflag,
fact_casedetails.macinitiatedflag,
fact_casedetails.conversionstatusdesc,
fact_casedetails.assignedstaff,
fact_casedetails.completedstaff,
fact_casedetails.closedbystaff,
fact_casedetails.initiator,
fact_casedetails.reasonforinvestigation,
fact_casedetails.primaryaddress,
fact_casedetails.parcelnumber,
fact_highweedsandgrassdetails.vendormoweddatetime,
Cast(Datediff([day],
fact_highweedsandgrassdetails.receiveddatetime,
COALESCE (
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.recordimportdatetime))
AS
NUMERIC(9, 2)),
Cast(Datediff([day],
fact_highweedsandgrassdetails.receiveddatetime,
COALESCE (
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.recordimportdatetime))
AS
NUMERIC(9, 2)),
Cast(Datediff([day],
fact_highweedsandgrassdetails.assignedtovendordate,
COALESCE (
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.recordimportdatetime))
AS
NUMERIC(9, 2)),
CASE
WHEN mowingstatus = 'Mowed'
OR mowingstatus = 'Closed' THEN 1
ELSE 0
END,
fact_highweedsandgrassdetails.recordimportdatetime,
fact_casedetails.macsiebelnumber,
fact_highweedsandgrassdetails.mowingduedate,
fact_highweedsandgrassdetails.vendormoweddate,
fact_highweedsandgrassdetails.lastfeeinvoicedate,
fact_highweedsandgrassdetails.investigationopendatetime,
fact_highweedsandgrassdetails.investigationopendate,
fact_highweedsandgrassdetails.investigationopendateid,
Cast(Datediff([day],
fact_highweedsandgrassdetails.investigationopendatetime,
CASE
WHEN
( vendormoweddatetime IS NOT NULL
AND vendormoweddatetime <=
fact_highweedsandgrassdetails.casecloseddate ) THEN
fact_highweedsandgrassdetails.vendormoweddatetime
ELSE
CASE
WHEN (
fact_highweedsandgrassdetails.casecloseddate
IS NOT NULL
AND
fact_highweedsandgrassdetails.casecloseddate <=
fact_highweedsandgrassdetails.recordimportdatetime )
THEN
fact_highweedsandgrassdetails.casecloseddate
ELSE
fact_highweedsandgrassdetails.recordimportdatetime
END
END) AS NUMERIC(9, 2)),
Cast(Datediff(ss,
fact_highweedsandgrassdetails.investigationopendatetime,
CASE
WHEN
COALESCE (vendormoweddatetime,
fact_highweedsandgrassdetails.casecloseddate) IS
NOT NULL THEN COALESCE (vendormoweddatetime,
fact_highweedsandgrassdetails.casecloseddate)
ELSE
CASE
WHEN
( fact_highweedsandgrassdetails.casecloseddate IS NOT NULL
AND fact_highweedsandgrassdetails.casecloseddate <=
fact_highweedsandgrassdetails.recordimportdatetime ) THEN
fact_highweedsandgrassdetails.casecloseddate
ELSE fact_highweedsandgrassdetails.recordimportdatetime
END
END) AS NUMERIC(18, 2)) * 60,
fact_casedetails.assigneddepartment,
COALESCE (fact_casedetails.assignedstaff, '[null]')
+ '/'
+ COALESCE (fact_casedetails.assigneddepartment, '[null]'),
fact_highweedsandgrassdetails.casecloseddate,
fact_highweedsandgrassdetails.receiveddatetime,
fact_highweedsandgrassdetails.assignedtovendordate,
fact_highweedsandgrassdetails.vendorinvoiceamount,
fact_highweedsandgrassdetails.invoicedstatusdate,
fact_highweedsandgrassdetails.complaint_source,
fact_highweedsandgrassdetails.inspection_result,
fact_highweedsandgrassdetails.reason_for_complaint,
fact_highweedsandgrassdetails.contractcompliancevendor,
fact_highweedsandgrassdetails.vendor_action,
fact_highweedsandgrassdetails.date_of_complaint_id,
fact_highweedsandgrassdetails.date_of_inspection_id,
CONVERT(INT, Replace(
Replace(fact_highweedsandgrassdetails.casenumber, 'HWG', 0)
, '-', 0)),
fact_highweedsandgrassdetails.maccomments,
dbo.dim_highweedscensustracts.b1_census_tract) AS
[High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS]
ORDER BY [High_x0020_Weeds_x0020_and_x0020_Grass_x0020_FACTS].[compliancejoin]
ASC
SVI just counted the columns from the top:
1) compliancejoin, 2) mowingsector, 3) caseclosedflag, 4) casehasvendorinfo, 5) mowingstatus, 6) assignedtovendor.
I see now that your subject line talks about column 6, but you say column 5 in body of your original post.
I don't know anything about cubes, but apparently there is some mapping problem when you run it from SSAS. (I assume it is SSAS, a part of the product I'm entirely ignorant of.) I figured that if you had got tripped by the zero-based numbering, you
might be staring on the wrong column.
Erland Sommarskog, SQL Server MVP, [email protected] -
Database access code in objects constructor, or in data access object
Given an object that is stored in a database, is it better to have the database access code in a constructor method, or a data access layer object? E.g. I have a Person class
public class Person{
int Id;
String name;
int age;
}When I want to read a person's details from the database, I could use a constructor something like this:
public Person(int id){
Connection con = getDatabaseConnection();
ResultSet rs = con.createStatement().executeQuery("Select name, age from person where person_id = " + id);
rs.next();
this.name = rs.getString(1);
this.age=rs.getInt(2);
}Or I could use a method in a data access object :
public Person getPerson(int id){
Person p = new Person();
Connection con = getDatabaseConnection();
ResultSet rs = con.createStatement().executeQuery("Select name, age from person where person_id = " + id);
rs.next();
p.setName(rs.getString(1));
p.setAge(rs.getInt(2));
return p;
}It seems to me that the constructor approach has two advantages
(1) the SQL code is kept in the relevant class (so if I want to add a field to Person, I only have to make changes to the Person class)
(2) I don't have to have a setter method for each field
Is one or other of these ways generally recognized as 'best practise'?malcolmmc wrote:
But then, on the other hand, everytime a Person gains a new field that's two places you have to change it. if the persistence interface is written in terms of the object and uses ORM, I don't have to touch the implementation. all i have to do is update the object, the database, and the mapping - just like you and your home brew ORM.
besides, so what? i'd fear the resource leak, bad layering, more difficult testing more.
Actually lately I've used annotations to label setters with database field names and run a simple home brew ORM to convert rows into objects even when not using a more complex persistence manager.home brew ORM? why is that necessary when you can choose from hibernate, ibatis, jdo, jpa, etc.? that's just nuts.
% -
I've been wondering for a while what techniques people use to access databases. I'm not talking about the JDBC API but how are applications designed. One obvious objective is to consolidate all database access into one package and not have SQL strewn throughout the app. This obviously helps for abstraction purposes, you could easily change the backend, but also makes for easy updates if you make a schema change. I've read about the Database Access Object pattern and like the idea of seperating database access details from the rest of the application. My question is one of implementation. Say you use something like the DAO pattern. Now you have one database access class for each business object and typically (not always) there is a 1:1 mapping of business objects to database tables. How do you actually implement the DAO class? Do you write a single method for each type of query you may perform? For example, say I have a simple schema where table A references table B and table B references tables C. I could query for Object C (from table C) in a number of ways such as:
select * from tableC, tableB where tableC.column2=tableB.column1 and tableB.column3=1234;
or
select * from tableC, tableB, tableA where tableC.column2=tableB.column1 and tableB.column2=tableA.column1;
and so on . . .
I'm wondering if people use some kind of abstraction to dynamically genereate the sql query on the fly or do you simple have seperate method calls for each query and just drop in the values:
ObjectC getCfromB(int tableBcolumn3Value){
String sql="select * from tableC where tableC.column2=tableB.column1 and tableB.column3="+tableBcolumn3Value;
//do your JDBC stuff and return ObjectC
Is there a way of having the database access classes understand the schema of your DB so if you supply a column from tableB and ask for objectC it knows what to do?
It seems labor intesive to have to write a method for each type of query,insert, update,delete you might do. How do people handle this? Are there any other standard/accepted methods of separating database details from the rest of the app, other than the DAO pattern?
thanksI'm trying to dive into an object/relational mapping layer. I don't want to have to write and maintain DTOs for every application.
I looked into OJB from Jakarta first. I liked the cache it had as part of the Jakarta family. It worked fine, but I was uncomfortable with the level of documentation.
I'm diving into Hibernate now. It seems to have more traction, and there's more documentation. I like the XDoclet/Ant tie-in. Gavin King is working with JBoss now, so Hibernate will be wired into JBoss in the future.
I hope I can make Hibernate a standard part of my repertoire.
If you'd rather not go that way, Martin Fowler's "Patterns Of Enterprise Application Architecture" has several approaches to the problem of data mapping layers.- MOD -
Object services - manual implementation of database access layer
Hello,
this is my first time with object services. I read a lot but can't find the information which I really need to implement my requirements.
I have build a persistent class, clicked to "persistence", mapped my persistent attributes. I want to use a table-like attribute in my class, which contains references to another class. I added this attribute manually to the attribute list in the class builder. Consequently, GET and SET methods were generated automatically. Then I changed the generator settings by activating "manual implementation of database access layer".
So, my first notice is - If I choose manual implementation a call of create_persistent-method will not work. Nothing will be inserted into the mapped data base table.
Can anybody give me a example which shows how I can implement the database access layer manually? What do I have to do to write object attributes into data base table?
Which methods do I have to enhance?
Thanks a lot for any help in advance!
AnneThanks for your answer, but I would not be sure if you really got my problem.
I really really read much stuff (including SAP help, sappress "object services in ABAP" by Assig, Fobbe, Niemitz, sappress "abap objects" by keller), I googled a lot. But I couldn't find detailed information about this manual implementation of database access which you can activate in persistence settings.
This is the only extract out of SAP Help regarding this topic:
"If you prefer to carry out a manual implementation of the database access layer, select to change the generator settings and select the field of the same name. In this case you can implement your own database read routines, through which you can redefine the generated SET and GET methods for access to the database. This is particularly recommended if you want to improve performance by providing these routines with their own buffer mechanism. "
And some information about so calles Structure mapping which means the same idea in my opinion
"Structure Mapping
In this case, you map ABAP Dictionary structures, rather than database tables or database views to persistent objects. The application developer must therefore program the type of persistent data storage in the appropriate methods of the class actor.
You will need to map a structure (or structures) if you want a persistent object to contain table-like attributes. Database tables can only have flat structures, which prevents your mapping the object to a table in this case. You must still use structure mapping, even if you want to store the data in a different form u2013 such as in a file on the application server."
I used the debugger to get the idea of the SAVE method. But I couldn't find the difference between manual and automatic implementation in the code.
I tried to use implicit enhancement, but was not successful. Right now I am trying to redefine the SAVE method of the interface IF_OS_CA_SERVICE. But I can't believe that I have to implement the whole attribute-table-mapping on my own now. That can't be the idea of object service and their manual implementation. In my opinion it must be possible to use predefined algorithm to map business key etc. to corresponding table fields and to implement own ideas just for those table-like attributes..
Or am I totally wrong with this thoughts?
Thanks in advance!!
Anne -
SPShell access using cmdlet VS. database access
Hi guys,
What's the recommend option to give SharePoint Shell Access for a user? Do I have to use cmdlet or is it safe to also directly give access through SQL management?
For example I first use the cmdlet below to grant access for my user:
Add-SPShellAdmin -UserName CONTOSO\UberAdminI know this only add user to my farm config DB and also added to the WSS_Admin_WPG local group on each server in the farm. Which is perfect.But in order to give access to other DBs I logged in to the SQL management studio and manually apply the role mapping for SharePoint_Shell_Access , SPDataAccess and WSS_Content_Applicaio_pools to the following tables for UberAdmin account:Sharepoint_AdminContentSharePoint_Service_StateIs that OK? And also do I still need to give SharePoint_Shell_Access to my content DBs ( note the UbderAdmin account is db_owner of all DBs)Any advise greatly appreciated.BalaiThe SP_DATA_ACCESS role replaces
the db_owner role in SharePoint 2013.
SP_DATA_ACCESS database role (From TechNet)
The SP_DATA_ACCESS role is the default role for database access and should be used for all object model level access to databases. Add the application pool account to this role during upgrade or new deployments.
The SP_DATA_ACCESS role will have the following permissions:
Grant EXECUTE or SELECT on all SharePoint stored procedures and functions
Grant SELECT on all SharePoint tables
Grant EXECUTE on User-defined type where schema is dbo
Grant INSERT on AllUserDataJunctions table
Grant UPDATE on Sites view
Grant UPDATE on UserData view
Grant UPDATE on AllUserData table
Grant INSERT and DELETE on NameValuePair tables
Grant create table permission
Reference:
http://technet.microsoft.com/EN-US/library/cc678863.aspx
Please 'propose as answer' if it helped you, also 'vote helpful' if you like this reply. -
My question is about high level design. I've written some JSP pages and some very simple JavaBeans that work on Tomcat.
Now I'm trying to design a Database access layer
I want to have a connection pool class and some other business logic classes communicating with each other.
How can I start a bean and keep it running and how do I access its methods from other beans?
Is this even feasible?
if I declare the scope of the bean as the application would I have to put it in all the pages of the web site or not?
Also, should I just forget about JavaBeans and do Servlets? Maybe EJB is better for this?
Please provide some examples in your answer if possible.
Thanks,
David AMy question is about high level design. I've written
some JSP pages and some very simple JavaBeans that
work on Tomcat.
Now I'm trying to design a Database access layerThe design and implementation of a persistence layer has nothing at to do with how the data is eventually displayed. Persistence is the same whether you use a Web or a Swing interface, so the question about Tomcat is moot.
I'd look at Martin Fowler's "Patterns of Enterprise Application Architecture" for its chapter on persistence or the Hibernate object/relational mapping tool.
I want to have a connection pool class and some other
business logic classes communicating with each other.Personally, I prefer to let Tomcat handle the database connection pool. I use the Commons DBCP class and configure my connections that way. Then I have my Java code do a JNDI lookup to access them, do the required database operation, and then close the connection to return it to the pool.
How can I start a bean and keep it running and how do I access its methods from other beans?
Is this even feasible? I'm not sure I know what you mean by "start a bean and keep it running". HTTP is a request/response, stateless protocol. You should think about operations as being initiated by a request and then going out of scope once the response is generated, much like the protocol itself. You don't keep a bean running in that case.
if I declare the scope of the bean as the application would I have to put it in all the pages of the web
site or not?You have to <jsp:useBean> in every page that needs it. Whether or not application scope is really appropriate or necessary is another matter.
Also, should I just forget about JavaBeans and do Servlets? You can and should use JSP for View, a servlet as your front controller, and JavaBeans to do the work in the back. It's not an either/or question. You really should be using all three.
Maybe EJB is better for this?You use EJBs if you have a highly transactional, distributed, clustered application. If none of those things apply to you, there's no reason why you must use EJBs.
Have a look at the Struts and Spring frameworks. -
Could I refactor database access functions?
Hi,
I have a lot of functions which doing the database queries. They all return map. "select to_chat(key), to_chart(value) from table"
code like following. Since so many database access parts are same.
only "query", and "preparestatement. setString(1, "aa") , preparestatement. setString(2, "aa") ..........." are different . I wonder if I could refactor them.
If I could, Is there any syncronizaion issue in it.
Thank you so much.
public Map getPriceChangeData(
Timestamp openTime,
Timestamp closeTime)
throws Exception {
TreeMap openCloseData = new TreeMap();
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
final String query ="select to_char(?), to_char(?) from table1";
try {
conn = DSDataLayer.connect();
pstmt = conn.prepareStatement(query);
pstmt.setInt(1, 3);
psmt.setInt(2. 6);
( the psmt.set... could be any number
rs = pstmt.executeQuery();
while (rs.next()) {
openClosetData.put(
rs.getString(1),
rs.getString(2));
return openClosetData;
} catch (SQLException se) {
String err =GETOPENCLOSE_ERR+ "on query"
+ query
+ " "
+ se.toString();
throw new Exception(err);
} catch (Exception e) {
String err = GETOPENCLOSE_ERR
+ e.toString();
throw new Exception(err);
} finally {
try {
if (rs != null)
rs.close();
if (pstmt != null)
pstmt.close();
if (conn != null)
conn.close();
} catch (SQLException sqle) {
//log error and continue
} finally {
rs = null;
pstmt = null;
conn = null;
}You may also want to look at Native Database Web Services :
http://download.oracle.com/docs/cd/E11882_01/appdev.112/e16659/xdb_web_services.htm -
Regarding Provisioning a user to Database Access Tables
Hi,
I've just completed with the installation of OIM 9101 and upgradation of 9101 to 9102. I'm facing a bit wierd. When I try to create a GTC for the Database Access Tables, I'm not able to see Database Access Tables option, in the drop down list for the Transport Provider.
I'm a bit confused if I've wrongly upgraded the system or if at all i've missed out some step. Though OIM seems to be ok and working fine.
Any suggestions as to how to solve this ?
Regards
NikhilThanks Prakash,
The issue has been resolved.
I'd like a bit more of your help. I'm facing an error as follows :
2011-04-14 12:21:52,074 ERROR [XELLERATE.GC.PROVIDER.TRANSFORMATION] Could not transform the data
java.lang.NullPointerException
at com.thortech.xl.gc.util.TransformationEngine.doTransformation(Unknown Source)
at com.thortech.xl.gc.util.TransformationEngine.transform(Unknown Source)
at com.thortech.xl.gc.runtime.GCAdapterLibrary.executeFunctionality(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpDBAT_PROVISIONING1_GTC.GENERICADAPTER(adpDBAT_PROVISIONING1_GTC.java:125)
at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpDBAT_PROVISIONING1_GTC.implementation(adpDBAT_PROVISIONING1_GTC.java:70)
at com.thortech.xl.client.events.tcBaseEvent.run(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.runEvent(Unknown Source)
at com.thortech.xl.dataobj.tcScheduleItem.runMilestoneEvent(Unknown Source)
at com.thortech.xl.dataobj.tcScheduleItem.eventPostInsert(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)
at com.thortech.xl.dataobj.tcORC.insertNonConditionalMilestones(Unknown Source)
at com.thortech.xl.dataobj.tcORC.completeSystemValidationMilestone(Unknown Source)
at com.thortech.xl.dataobj.tcOrderItemInfo.completeCarrierBaseMilestone(Unknown Source)
at com.thortech.xl.dataobj.tcOrderItemInfo.eventPostInsert(Unknown Source)
at com.thortech.xl.dataobj.tcUDProcess.eventPostInsert(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)
at com.thortech.xl.dataobj.tcTableDataObj.save(Unknown Source)
at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.setProcessFormData(Unknown Source)
at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.setProcessFormData(Unknown Source)
at com.thortech.xl.ejb.beans.tcFormInstanceOperationsSession.setProcessFormData(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.invocation.Invocation.performCall(Invocation.java:359)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:237)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:158)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:169)
at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:350)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:168)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:138)
at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:648)
at org.jboss.ejb.Container.invoke(Container.java:960)
at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.invocation.local.LocalInvoker$MBeanServerAction.invoke(LocalInvoker.java:169)
at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:118)
at org.jboss.invocation.InvokerInterceptor.invokeLocal(InvokerInterceptor.java:209)
at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:195)
at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61)
at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:70)
at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:112)
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100)
at $Proxy769.setProcessFormData(Unknown Source)
at Thor.API.Operations.tcFormInstanceOperationsClient.setProcessFormData(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at Thor.API.Base.SecurityInvocationHandler$1.run(Unknown Source)
at Thor.API.Security.LoginHandler.jbossLoginSession.runAs(Unknown Source)
at Thor.API.Base.SecurityInvocationHandler.invoke(Unknown Source)
at $Proxy813.setProcessFormData(Unknown Source)
at com.thortech.xl.webclient.actions.DirectProvisionUserAction.handleVerifyProcessData(Unknown Source)
at com.thortech.xl.webclient.actions.DirectProvisionUserAction.goNext(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
at com.thortech.xl.webclient.actions.tcLookupDispatchAction.execute(Unknown Source)
at com.thortech.xl.webclient.actions.tcActionBase.execute(Unknown Source)
at com.thortech.xl.webclient.actions.tcAction.execute(Unknown Source)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.thortech.xl.webclient.security.SecurityFilter.doFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:619)
2011-04-14 12:21:52,074 ERROR [XELLERATE.GC.PROVIDER.TRANSFORMATION] Could not transform the data
com.thortech.xl.gc.exception.ProviderException: GCPROV.ADAPTER_INPUTSTR_MISSING
at com.thortech.xl.gc.util.TransformationEngine.doTransformation(Unknown Source)
at com.thortech.xl.gc.util.TransformationEngine.transform(Unknown Source)
at com.thortech.xl.gc.runtime.GCAdapterLibrary.executeFunctionality(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpDBAT_PROVISIONING1_GTC.GENERICADAPTER(adpDBAT_PROVISIONING1_GTC.java:125)
at com.thortech.xl.adapterGlue.ScheduleItemEvents.adpDBAT_PROVISIONING1_GTC.implementation(adpDBAT_PROVISIONING1_GTC.java:70)
at com.thortech.xl.client.events.tcBaseEvent.run(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.runEvent(Unknown Source)
at com.thortech.xl.dataobj.tcScheduleItem.runMilestoneEvent(Unknown Source)
at com.thortech.xl.dataobj.tcScheduleItem.eventPostInsert(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)
at com.thortech.xl.dataobj.tcORC.insertNonConditionalMilestones(Unknown Source)
at com.thortech.xl.dataobj.tcORC.completeSystemValidationMilestone(Unknown Source)
at com.thortech.xl.dataobj.tcOrderItemInfo.completeCarrierBaseMilestone(Unknown Source)
at com.thortech.xl.dataobj.tcOrderItemInfo.eventPostInsert(Unknown Source)
at com.thortech.xl.dataobj.tcUDProcess.eventPostInsert(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.insert(Unknown Source)
at com.thortech.xl.dataobj.tcDataObj.save(Unknown Source)
at com.thortech.xl.dataobj.tcTableDataObj.save(Unknown Source)
at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.setProcessFormData(Unknown Source)
at com.thortech.xl.ejb.beansimpl.tcFormInstanceOperationsBean.setProcessFormData(Unknown Source)
at com.thortech.xl.ejb.beans.tcFormInstanceOperationsSession.setProcessFormData(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.invocation.Invocation.performCall(Invocation.java:359)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:237)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:158)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:169)
at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:350)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:168)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:138)
at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:648)
at org.jboss.ejb.Container.invoke(Container.java:960)
at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.invocation.local.LocalInvoker$MBeanServerAction.invoke(LocalInvoker.java:169)
at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:118)
at org.jboss.invocation.InvokerInterceptor.invokeLocal(InvokerInterceptor.java:209)
at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:195)
at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61)
at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:70)
at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:112)
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100)
at $Proxy769.setProcessFormData(Unknown Source)
at Thor.API.Operations.tcFormInstanceOperationsClient.setProcessFormData(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at Thor.API.Base.SecurityInvocationHandler$1.run(Unknown Source)
at Thor.API.Security.LoginHandler.jbossLoginSession.runAs(Unknown Source)
at Thor.API.Base.SecurityInvocationHandler.invoke(Unknown Source)
at $Proxy813.setProcessFormData(Unknown Source)
at com.thortech.xl.webclient.actions.DirectProvisionUserAction.handleVerifyProcessData(Unknown Source)
at com.thortech.xl.webclient.actions.DirectProvisionUserAction.goNext(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
at com.thortech.xl.webclient.actions.tcLookupDispatchAction.execute(Unknown Source)
at com.thortech.xl.webclient.actions.tcActionBase.execute(Unknown Source)
at com.thortech.xl.webclient.actions.tcAction.execute(Unknown Source)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.thortech.xl.webclient.security.SecurityFilter.doFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NullPointerException
This Error seems to occur because I was trying to attach certain pre-prop adapters within the default process form that is created while installing the connector. Roaming around the threads here, I came to know that this might be the problem as pre-props don't work fine when applied to the GTC's default form.
To overcome this problem, I've thought of a solution wherein I should create a new Custom Process Form and then apply my pre-props. But for this approach, I'm stuck into the middle. How can I apply a new Custom Form to an existing Provisioning Process ? Is this fesiable ? If yes, where should the changes be made ?
I tried changing the Table Name inside the GTC's provisioning process so that GTC can pick up the my new process form instead of its default process form, but that again gives an error saying :
com.thortech.xl.orb.dataaccess.tcDataAccessException: DB_READ_FAILEDDetail: SQL: select err_key, err_code, err_desc, err_rowver, err_remedy, err_count, err_last_occurance, err_action, err_help_url, err_severity from err where err_code='DOBJ.UPDATE_FAILED'Description: Got a null connectionSQL State: Vendor Code: 0Additional Debug Info:com.thortech.xl.orb.dataaccess.tcDataAccessException
I hope the scenario is clear to you and i'm able to explain upto the mark .. :(
Kindly help me out..
Regards
Nikhil -
Performance Tuning in case of Database Access
Hi,
I am using following code...database access is huge for this code...pls help me out to make database access minimum. I am using 3 internal tables.
select partner1 partner2 into (mtab-busi_part, mtab-BUT051_PART)
from but051.
Select name_first name_last PARTNER_GUID into (mtab-bp_first, mtab-bp_last, MTAB-R_PARTNER_GUID)
From but000 where partner = mtab-busi_part.
*MTAB-OBJECT_ID = ITAB-OBJECT_ID.
append mtab.
endselect.
ENDSELECT.
*ENDLOOP.
loop at mtab.
CONCATENATE mtab-bp_FIRST mtab-bp_LAST INTO mTAB-bp_full
separated BY SPACE.
modify mtab.
endloop.
loop at mtab.
if mtab-bp_full = ' '.
select name_org1 into (mtab-bp_full)
from but000 where partner = mtab-busi_part.
append mtab.
endselect.
endif.
modify mtab.
clear mtab.
endloop.
SELECT OBJECT_ID GUID INTO (NTAB-object_id, Ntab-guid)
FROM CRMD_ORDERADM_H
for all entries in itab
where process_type = '1001' and object_id in o_id.
select single date_1 date_2 from crmv_item_index into (ntab-date_1, ntab-date_2 )
where object_id = ntab-object_id.
endselect.
Select partner_no partner_fct into (Ntab-partner_guid, Ntab-partner_fct)
from bbp_pdview_bup where guid_hi = Ntab-guid .
*and partner_fct <> '00000015'
Select partner name_org1 into (Ntab-partner_no2, Ntab-others)
from but000 where partner_guid = Ntab-partner_guid.
if sy-subrc = 0.
SELECT SINGLE DESCRIPTION FROM CDBC_PARTNER_FT INTO NTAB-DESC
WHERE PARTNER_FCT = NTAB-PARTNER_FCT AND SPRAS = 'EN'.
endif.
SELECT PAFKT ABTNR PAAUTH
FROM BUT051 INTO corresponding fields of nTAB
WHERE PARTNER2 = ntab-partner_no2 .
if sy-subrc = 0.
SELECT single BEZ30 FROM TB913
INTO CORRESPONDING FIELDS OF nTAB
WHERE PAFKT = nTAB-PAFKT AND SPRAS = 'E'.
endif.
if sy-subrc = 0.
SELECT single BEZ20 FROM TB915
INTO CORRESPONDING FIELDS OF nTAB
WHERE PAAUTH = nTAB-PAAUTH AND SPRAS = 'E'.
endif.
*endselect.
if sy-subrc = 0.
SELECT single BEZ20 FROM TB911
INTO (nTAB-BEZ2)
WHERE ABTNR = nTAB-ABTNR AND SPRAS = 'E'.
endif.
endselect.
APPEND NTAB.
*clear ntab.
*ENDSELECT.
ENDSELECT.
*clear ntab.
ENDSELECT.
ENDSELECT.
loop at ntab.
if ntab-others = ' '.
select name_first name_last into (ntab-first_name1, ntab-last_name1)
from but000 where partner = ntab-partner_no2.
endselect.
CONCATENATE ntab-FIRST_NAME1 ntab-LAST_NAME1 INTO nTAB-others
separated BY SPACE.
endif.
modify ntab.
clear ntab.
endloop.
SORT NTAB BY GUID.
SELECT OBJECT_ID GUID INTO (KTAB-object_id, Ktab-guid)
FROM CRMD_ORDERADM_H
for all entries in itab
where process_type = '1001' and object_id in o_id.
Select partner_no into (Ktab-partner_no1)
From crmd_order_index where header = Ktab-guid and pft_8 = 'X' and object_type = 'BUS2000126'.
*endselect.
Select name_first name_last into (Ktab-first_name, Ktab-last_name)
From but000 where partner = Ktab-partner_no1.
*endselect.
APPEND KTAB.
ENDSELECT.
ENDSELECT.
ENDSELECT.
loop at Ktab.
CONCATENATE Ktab-FIRST_NAME Ktab-LAST_NAME INTO KTAB-RESP_EMPLOYEE
separated BY SPACE.
MODIFY KTAB.
clear Ktab.
endloop.
loop at Ktab.
if Ktab-RESP_EMPLOYEE = ' '.
select name_ORG1 into (Ktab-RESP_EMPLOYEE)
from but000 where partner = Ktab-partner_no1.
endselect.
endif.
modify Ktab.
clear Ktab.
endloop.
SELECT OBJECT_ID GUID INTO (itab-object_id, itab-guid)
FROM CRMD_ORDERADM_H
where process_type = '1001' and object_id in o_id.
append itab.
endselect.
LOOP AT iTAB.
LOOP AT NTAB .
IF NTAB-object_id = iTAB-object_id .
itab-date_1 = ntab-date_1.
ITAB-DESC = NTAB-DESC.
itab-partner_no2 = NTab-partner_no2.
itab-partner_fct = ntab-partner_fct.
itab-bez30 = ntab-bez30.
itab-bez20 = ntab-bez20.
itab-bez2 = ntab-bez2.
itab-others = ntab-others.
INSERT lines of nTAB INTO ITAB.
modify itab.
CLEAR ITAB.
delete itab where object_id = ' ' and partner_no2 = ' '.
ENDIF.
endloop.
endloop.
sort itab by OBJECT_ID descending PARTNER_NO2 .
delete adjacent duplicates from itab comparing partner_no2 object_id.
sort itab by OBJECT_ID descending PARTNER_NO2 .
loop at iTab where partner_fct = '00000015'.
LOOP AT mTAB WHERE BUT051_PART = iTAB-partner_no2 .
itab-busi_part = mtab-busi_part.
itab-bp_full = mtab-bp_full.
ITAB-R_PARTNER_GUID = MTAB-R_PARTNER_GUID.
INSERT LINES OF mTAB INTO iTAB.
modify itab transporting busi_part bp_full r_partner_guid.
endloop.
endloop.
sort itab by busi_part descending partner_no2.
delete itab where object_id = ' '.
loop at ITab.
LOOP AT KTAB.
IF KTAB-GUID = ITAB-GUID.
move Ktab-partner_no1 to itab-partner_no1.
move Ktab-R_partner_GUID to itab-R_partner_GUID.
move Ktab-RESP_EMPLOYEE to itab-RESP_EMPLOYEE.
modify itab.
ENDIF.
endloop.
endloop.Hi
i will give you some tips to reduce the daya base load please apply that
<b>Tips and Tricks</b>
Optimizing the load of the database
Using table buffering
Using buffered tables improves the performance considerably. Note that in some cases a statement can not be used with a buffered table, so when using these statements the buffer will be bypassed. These statements are:
Select DISTINCT
ORDER BY / GROUP BY / HAVING clause
Any WHERE clause that contains a sub query or IS NULL expression
JOIN s
A SELECT... FOR UPDATE
If you wan t to explicitly bypass the buffer, use the BYPASS BUFFER addition to the SELECT clause.
Optimizing the load of the database
2. Use the ABAP SORT Clause Instead of ORDER BY
The ORDER BY clause is executed on the database server while the ABAP SORT statement is executed on the application server. The database server will usually be the bottleneck, so sometimes it is better to move the sort from the database server to the application server.
If you are not sorting by the primary key ( E.g. using the ORDER BY PRIMARY key statement) but are sorting by another key, it could be better to use the ABAP SORT statement to sort the data in an internal table. Note however that for very large result sets it might not be a feasible solution and you would want to let the database server sort it.
Optimizing the load of the database
3. Avoid the SELECT DISTINCT Statement
As with the ORDER BY clause it could be better to avoid using SELECT DISTINCT, if some of the fields are not part of an index. Instead use ABAP SORT + DELETE ADJACENT DUPLICATES on an internal table, to delete duplicate rows.
Additional Info
Use of CONTEXT can highly optimize the code.
Context can be created using Context Builder (SE33)
Context advantages: - no double fetch by DEMAND: 1. fetch, 2. get from buffer - more performance (best SELECT-statement) - better survey of code
Use of PARALLEL CURSOR increases the Performance to a great extent.
INDEXES help to speed up selection from the database. The primary index is always created automatically in the SAP System. It consists of the primary key fields of the database table. If you cannot use the primary index to determine a selection result (for example, WHERE condition may not contain any primary index fields), you can create a secondary index.
Optimal number of indexes for a table You should not create more than five secondary indexes for any one table because:
Whenever you change table fields that occur in the index, the index itself is also updated.
The amount of data increases.
The optimizer has too many chances to make mistakes by using the 'wrong' index.
If you are using more than one index for a database table, ensure that they do not overlap.
reward if useful -
Database Access NullPointer Exception in Tomcat
Hi
I have got a problem with database access in my servlet i have folowed all steps of installing and configuring tomcat and i have a DNS that i use to connect to my access database but i get a NullPointerException when i try to create a statement.
please helpPlease show the code.
-
How to handle and manage a multi Database access in runtime with LCDS?
Hello there
I got several customer working with the same application and I wonder how, with LCDS, to manage in a runtime a multi dataBase access; without creating a configuration "mxl" file in
the folder catalina for each database.
Indeed, each customer have their own dataBase, and so far, I did not find out how to avoid creating a config xml file in catalina for every single database; which force me to create as well for each customer a folder application, since the name of the config file in catalina require a folder application to be ran under tomcat....
Thus, my question is :
Is there anyway to create only one configuration mxl file in catalina (in the server side) and then from the client side (application) let the user select its environment (meaning its database) to run the application.... this technic can be also used for multi database environment such as : Dev / Test / Prod environment (or database) where the same application can access to.
Please if any one have an idea or already delt with; just let me know, because I'm entering in a bootle neck and the situation is getting serioulsy critical....
RegardsHello Ulrich,
with compact and repair I mean the MSAccess function "Compact and Repair".
Please follow the link below for more details:
http://office.microsoft.com/en-us/access-help/compact-and-repair-an-access-file-HP005187449.aspx
Normally you can execute this function directly in Access or with the Windows ODBC Data Sources Administrator => "Control Panel" => "Administrative Tools" => "Data Sources (ODBC)"...
I want to execute this function via cvi code and not by hand ;-).
Thank you for your support.
Frank -
Filter on the reports created using DIRECT DATABASE ACCESS in obiee 10g
How do i filter on the report that is created by using DIRECT DATABASE ACCESS in obiee 10g?
I have reprot A with link to report B, report B is created using DIRECT DATABASE ACCESS. so it is just a table, but i need to filter out 2 columns.
here is the query in REPORT B:
select strm, acad_group, crse_id, class_section, count(emplid) from v_crse_enrl
group by crse_id, strm, class_section, acad_group;
the link in REPORT A:
'<a target="_blank" href="'||VALUEOF("bi_link")||'Go&Path=CF_CROSS_TEACHING_LIST&ACTION=Navigate&col1=STRM&val1='||view1_DIMEN.STRM||'&col2=CLASS_SECTION&val2='||TRIM(view1_DIMEN.CLASS_SECTION)||'">' ||view1_dimen.class_id||'</a>'
from this link to report B.
thank you!!I didnt tested using url, but the same works with using presentation variables.
To your direct sql add where clause for those two columns like WHERE col='@{col1}' and col ='@{col2}'
and try to run from url.
let me know updates
Maybe you are looking for
-
I have a student who when he tries to batch rename his .jpgs in Adobe Bridge CS5.1, the files will become corrupted and will not be able to open them. The extension is off. How can I correct this for him?
-
How to get the MAC address of a PXI in a dll
Hi, I am looking for a way to get the MAC address of a PXI RT controller. I know that there is a VI to do this, but I am looking for a solution for a dll (C-Code). I use the "Call library node" to call this dll and want to make sure that it is only u
-
JCO connection tab in disabled mode in sap J2EE engine/webdynpro/local/proj
Dear all, I'm developing the simple webdynpro object using netweaver developer studio, but when i deploy it to sap J2ee engine and go there to set the JCO connection, I find the jco connectiuon tab in the diabled mode. I need to configure the new jco
-
Force ICC profile in Video Games
Does anyone know of a way to force your ICC monitor profile to stay active through video games? My screen is terrible when going to "native" and all games switch to this when active. My screen is so frosty blue I can't take it. Seriously, the profile
-
Block breaker deluxe game shows half of screen
i just got my iPod nano and i downloaded the game Block Breaker Deluxe. when i played it the first, time it played just fine. When i played it again, it only started to show half of the game. when i exit the game and go back to the menu, the menu is