JDBC Querying Null Values

I'm using the JDBC Query Multiple Rows as XML to query an Oracle database. Many of the fields I'm querying are nullable and in fact some contain null values. I can't figure out why the JDBC component queries a null value as the string "null". I've tried to work with nvl() or replace() in my SQL statement, but I haven't got either of them to work.
I would assume someone else has run into this. Anyone have any advice on how to get around this?

I just found a solution that worked for my situation.
On the form being merged with the xml data, select the field(s) you want to hide the null value for.
Then go into the 'Field' tab in the 'Object' palette, click on the patterns button.
In the Data tab click 'Allow empty' and in the text box below it type
null
This should hide any null values from being displayed as 'null' on the form. This also works for numeric fields and date/time fields.

Similar Messages

Query null value

How can query detail block if one of master items (which is in relaton) is sometimes null

i don't know your problem.
you are doing a select?
if it is sou you can made an outer-join
where det_mast_id = mast_id (+)
(the (+) on the id whitch can be null
null

About xml and null values in 10g

Hi, I have an UCM GetFile webservice component wich receives 4 arguments, two of them are null values (rendition and extraPops), and the xml request generated by obpm is:
<GetFileByName xmlns="http://www.stellent.com/GetFile/">
<dDocName>V_123410</dDocName>
<revisionSelectionMethod>latestReleased</revisionSelectionMethod>
<rendition/>
<extraProps/>
</GetFileByName>The problem is: On UCM web service, an empty tag like <rendition/> is treated like a "empty string" value, instead of a null value, and then the response i get isn't the expected.
What I want do to is change this behavior, and when I put null values in requests, the obpm should not write those tags. Is that possible?
Should be like that:
<GetFileByName xmlns="http://www.stellent.com/GetFile/">
<dDocName>V_123410</dDocName>
<revisionSelectionMethod>latestReleased</revisionSelectionMethod>
</GetFileByName>Thanks!

Hi,
I have question regarding aggregates. It's possible to read data from BW aggregates? We have webi reports on a SAP BW multi cube and we would like to optimize retriving query.
>> Because you are using the BW Query as the source all the items that you have done so far in terms of aggregation, indexing, ... is all valid and there are no specific steps required to leverage it with Web Intelligence. Make sure the aggregates are "correct" meansing that they do reflect what you are asking for in the Web Intelligence query panel
How can we filter in webi query null (#) values. If we create condition that some variabe is diffrent from # we still get null (#) values in report.
>> You should be able to create a variable. in case you tried that already could you be more specific ?
thanks
Ingo

JDBC MS Access--- cannot extract entry with null value with data type Meta

I'm trying to extract a data entry with null value by using JDBC. The database is MS Access.
The question is how to extract null entry with data type memo? The following code works when the label has data type Text, but it throws sqlException when the data type is memo.
Any advice will be appreciated! thanks!
Following are the table description and JDBC code:
test table has the following attributes:
Field name Data Type
name Text
label Memo
table contents:
name label
me null
you gates
Code:
String query = "SELECT name, label FROM test where name like 'me' ";
ResultSet rs = stmt.executeQuery(query);
while (rs.next())
String name = rs.getString("name");
rs.getString("val");
String label = rs.getString("label");
System.out.println("\t"+name+"\t"+label);
catch (SQLException ex)
System.out.println(ex.getSQLState());
System.out.println(ex.getErrorCode());
System.out.println("in sqlexception");
output:
C:\Temp\SEFormExtractor>java DBTest
yet SELECT name, label FROM test
null
0
in sqlexception

The question is how to extract null entry with data type memo?Okay, what you need to do is this:
if (rs.getString("val") == null)
// do something
}This way, when it's a null value, you can check it first, and then handle it how you want, rather than getting an exception.

Replace NULL values from PIVOT query

Hi,
I'm querying a table for sales, for some values, when now columns, the finish with a null value. How can I handle these values as 0 (zeros).
WITH PIVOT_DATA AS (
SELECT S.ZONE_CODE,Z.ZONE_NAME,S.YEAR,S.PERIOD,S.SALES
FROM STAT_TABLE_SALES VTA
JOIN ZONES Z ON S.COMP=Z.COMP AND S.ZONE_CODE=Z.ZONE_CODE
WHERE S.COMP = '001'
AND S.BRAND_CODE = '001'
SELECT *
FROM PIVOT_DATA
PIVOT(
SUM(SALES) FOR (YEAR,PERIOD) IN ((2009,1),
(2009,2),
(2009,3),
(2009,4),
(2009,5),
(2009,6),
(2009,7),
(2009,8),
(2009,9),
(2009,10),
(2009,11),
(2009,12),
(2010,1),
(2010,2),
(2010,3),
(2010,4),
(2010,5),
(2010,6),
(2010,7))
ORDER BY 14 DESC NULLS LAST;
This query returns the following:
COD_ZONA NOM_ZONA 2009_1 2009_2 2009_3
01 YEDUSIJH. 1382367.75 1559943.27 1441279.64
02 DO,ASKAK 711897.82 865854.05 1583232.3
03 ASDFG 130443.03 205409.84 178633.69
04 OSOIDSD 320118.32 439008.83 409251.18
05 ODFSDF 300908.21 276301.59 260188.53
06 CH 242749.65 325196.71 464938.9
07 SOA 610312.31 606312.93 754569.82
08 SAN 89426.8 81360.04 61649.27
09 YP 284487.79 328281.31 267210.85
10 TC 87043.28 158594.43 85195.8
11 BAGNN 76778.78 68180.76 118530.04
12 CRTS 122023.7 143442.21 134744.85
13 OCC 209992.79 196477.03 185222.14
14 IDLB
15 YA 23870.41 4137.33 16660.53
**These are not all the columns and rows, but this is a piece of what it returns.
How can I replace these NULLS with 0(zeros).

Still not sure why nvl shouldn't suit your needs:
SQL> select ename, nvl (clerk_20, 0) clerk_20, nvl (sal_30, 0) sal_30
from emp pivot (sum (sal)
           for (job, deptno)
           in ( ('CLERK', 20) clerk_20, ('SALESMAN', 30) sal_30))
ENAME             CLERK_20          SAL_30
WARD                     0            1250
JONES                    0               0
TURNER                   0            1500
ADAMS                 1100               0
ALLEN                    0            1600
SMITH                  800               0
CLARK                    0               0
KING                     0               0
BLAKE                    0               0
JAMES                    0               0
FORD                     0               0
SCOTT                    0               0
MARTIN                   0            1250
MILLER                   0               0
14 rows selected.

Remove null values from query

Hi All;
Below is my query and the output and i need to remove null values from the output
Any help regarding same is much appreciated
Thanks
; WITH CTE AS
select a.opportunityid,a.new_entrypoint_displayname,c.parentcustomerid,c.contactid,c.fullname,a.new_mainprogramme_idname,
a.new_subprogramme_idname,
a.owneridname,
a.new_dateofapplication,count(appt.activityid) as NoOfAppointments,
ap.scheduledstart,
ap.scheduleddurationminutes
from opportunity a
left join contact c on (c.contactid = a.parentcontactid)
inner join activitypointer ap on ( ap.regardingobjectid = c.contactid )
inner join appointment appt on (appt.activityid = ap.ActivityId)
where
appt.new_didmeetingtakeplace = 1
and appt.statecode = 1 and
(a.SCRIBE_DELETEDON is null and c.SCRIBE_DELETEDON is null and ap.SCRIBE_DELETEDON is null and appt.SCRIBE_DELETEDON is null)
group by a.opportunityid,a.new_entrypoint_displayname,c.parentcustomerid, c.contactid,c.fullname,a.owneridname,
a.new_mainprogramme_idname,a.new_subprogramme_idname,
a.new_dateofapplication,ap.scheduledstart,
ap.scheduleddurationminutes
union
select a.opportunityid,a.new_entrypoint_displayname,c.parentcustomerid,c.contactid,c.fullname,
a.new_mainprogramme_idname,a.new_subprogramme_idname,a.owneridname,
a.new_dateofapplication,count(appt.activityid) as NoOfAppointments,
ap.scheduledstart,
ap.scheduleddurationminutes
from opportunity a
left join contact c on (c.contactid = a.parentcontactid)
inner join activitypointer ap on (ap.regardingobjectid = a.opportunityid)
inner join appointment appt on (appt.activityid = ap.ActivityId)
where
appt.new_didmeetingtakeplace = 1
and appt.statecode = 1 and
(a.SCRIBE_DELETEDON is null and c.SCRIBE_DELETEDON is null and ap.SCRIBE_DELETEDON is null and appt.SCRIBE_DELETEDON is null)
group by a.opportunityid,a.new_entrypoint_displayname,c.parentcustomerid,c.contactid,a.owneridname,
a.new_mainprogramme_idname,a.new_subprogramme_idname,
c.fullname,a.new_dateofapplication,
ap.scheduledstart,
ap.scheduleddurationminutes
CTE2 As
select opportunityid,parentcustomerid,new_entrypoint_displayname,contactid,fullname,
new_mainprogramme_idname,new_subprogramme_idname,cte.owneridname,
ac.new_businessstartdate,new_dateofapplication,(NoOfAppointments),
case when ac.new_businessstartdate > = CTE.scheduledstart
then (CTE.scheduleddurationminutes) end as PreStartHours,
case when ac.new_businessstartdate < CTE.scheduledstart
then (CTE.scheduleddurationminutes) end as PostStartHours
pp.new_outputs,
case when po.new_outputsname = 'Pre Start Assist'
then 'Yes' else 'No' end as Precheck,
case when po.new_outputsname = 'Business Assist'
then 'Yes' else 'No' end as Buscheck
from CTE
join account ac on (ac.accountid = CTE.parentcustomerid)
join dbo.new_programmeoutput as po on (CTE.opportunityid = po.new_relatedopportunity)
join dbo.new_programmeprofile pp on (
po.new_mainprogrammeid = pp.new_mainprogrammeid and
po.new_subprogrammeid = pp.new_subprogrammeid
and pp.new_claimstartdate = po.new_claimdate
and pp.new_outputsname = po.new_outputsname)
where (ac.SCRIBE_DELETEDON is null)
group by opportunityid,parentcustomerid,new_entrypoint_displayname,contactid,fullname,ac.new_businessstartdate,new_dateofapplication,NoOfAppointments,
scheduledstart,new_mainprogramme_idname,new_subprogramme_idname,cte.owneridname,scheduleddurationminutes
select opportunityid,parentcustomerid,new_entrypoint_displayname,contactid,fullname,
new_mainprogramme_idname,new_subprogramme_idname,cte2.owneridname,
new_businessstartdate,new_dateofapplication,(NoOfAppointments),
PreStartHours, PostStartHours,po.new_programmeoutputid,
case when (new_outputsname) = 'Pre Start Assist'
then 'Yes' else 'No' end as Precheck,
case when (new_outputsname) = 'Business Assist'
then 'Yes' else 'No' end as Buscheck --po.*
from cte2
left join dbo.new_programmeoutput as po on (cte2.opportunityid = po.new_relatedopportunity)
where po.new_claimmonthidname is not null and po.statuscode_displayname = 'claimed'
group by opportunityid,parentcustomerid,new_entrypoint_displayname,contactid,fullname,
new_mainprogramme_idname,new_subprogramme_idname,cte2.owneridname,
new_businessstartdate,new_dateofapplication,(NoOfAppointments),
PreStartHours, PostStartHours,po.new_programmeoutputid,new_outputsname
--where new_claimmonthidname is not null --and CTE2.PreStartHours is not null and CTE2.PostStartHours is not null
Pradnya07

i need to remove null values from the output
Hello,
What exactly do you mean with "remove", to filter the rows out from result set or to replace the null value by an other value e.g. 0? This can be done with the
ISNULL function:
ISNULL(case when ac.new_businessstartdate > = CTE.scheduledstart
then (CTE.scheduleddurationminutes) end, 0) as PreStartHours, ...
Olaf Helper
[ Blog] [ Xing] [ MVP]

How to restrict the Null Values for Key Figules in the Bex Query

Hi Friends,
    I want to restrict the Null values of a perticular key figure in the Bex Query Output.
I will explain in details. i have 3 key figures in my query.. let us assume.. key1 key2key3
key1           key2                key3
4                4                   100.00
5                0                   200.00
1                0                    19.00
0                1                    10.00
i don't want to see the the records for which key 2 is 0.
we have a setting in the Bex Query for restricting the Zero values in the query properties. If we enable that setting it will show
4               4          100.00
but i want the report to display..
4               4           100.00
0               1           10.00
can any body guide me. <b>i want to display the values if key2 <> 0.</b>
Regards,
Nagesh.

Hi AVR,
nice to see reply.
can you eloborate your view...how can i put the condition.
<b>i want to put the condition key2 <> 0.</b>
Regards,
Nagesh.

Sql query slowness due to rank and columns with null values:


Sql query slowness due to rank and columns with null values:
I have the following table in database with around 10 millions records:
Declaration:
create table PropertyOwners (
[Key] int not null primary key,
PropertyKey int not null,
BoughtDate DateTime,
OwnerKey int null,
GroupKey int null
go
[Key] is primary key and combination of PropertyKey, BoughtDate, OwnerKey and GroupKey is unique.
With the following index:
CREATE NONCLUSTERED INDEX [IX_PropertyOwners] ON [dbo].[PropertyOwners]
[PropertyKey] ASC,
[BoughtDate] DESC,
[OwnerKey] DESC,
[GroupKey] DESC
go
Description of the case:
For single BoughtDate one property can belong to multiple owners or single group, for single record there can either be OwnerKey or GroupKey but not both so one of them will be null for each record. I am trying to retrieve the data from the table using
following query for the OwnerKey. If there are same property rows for owners and group at the same time than the rows having OwnerKey with be preferred, that is why I am using "OwnerKey desc" in Rank function.
declare @ownerKey int = 40000
select PropertyKey, BoughtDate, OwnerKey, GroupKey
from (
select PropertyKey, BoughtDate, OwnerKey, GroupKey,
RANK() over (partition by PropertyKey order by BoughtDate desc, OwnerKey desc, GroupKey desc) as [Rank]
from PropertyOwners
) as result
where result.[Rank]=1 and result.[OwnerKey]=@ownerKey
It is taking 2-3 seconds to get the records which is too slow, similar time it is taking as I try to get the records using the GroupKey. But when I tried to get the records for the PropertyKey with the same query, it is executing in 10 milliseconds.
May be the slowness is due to as OwnerKey/GroupKey in the table can be null and sql server in unable to index it. I have also tried to use the Indexed view to pre ranked them but I can't use it in my query as Rank function is not supported in indexed
view.
Please note this table is updated once a day and using Sql Server 2008 R2. Any help will be greatly appreciated.

create table #result (PropertyKey int not null, BoughtDate datetime, OwnerKey int null, GroupKey int null, [Rank] int not null)Create index idx ON #result(OwnerKey ,rnk)
insert into #result(PropertyKey, BoughtDate, OwnerKey, GroupKey, [Rank])
select PropertyKey, BoughtDate, OwnerKey, GroupKey,
RANK() over (partition by PropertyKey order by BoughtDate desc, OwnerKey desc, GroupKey desc) as [Rank]
from PropertyOwners
go
declare @ownerKey int = 1
select PropertyKey, BoughtDate, OwnerKey, GroupKey
from #result as result
where result.[Rank]=1
and result.[OwnerKey]=@ownerKey
go
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
MS SQL optimization: MS SQL Development and Optimization
MS SQL Consulting:
Large scale of database and data cleansing
Remote DBA Services:
Improves MS SQL Database Performance
SQL Server Integration Services:
Business Intelligence

Show NULL values in an SQL query

Hi,
Please excuse my ignorance, but I am very green in Oracle.
I am trying to create a simple function in PHP to return a list of the entire table row in an Oracle DB, however no matter I do Oracle skipps the columns with NULL values, which means that I don't even get the number of the columns corect. The query is as simple as it can get:
SELECT * FROM table_name;
I've tried NVL, DECODE and god knows what else. Please give me a hand with this.
Cheers,
Pimmy

Once you can use ODBC it should be possible to use MySQL with HS:
http://www.idevelopment.info/data/Oracle/DBA_tips/Heterogeneous_Services/HETERO_2.shtml
What concerns the licenses: We are not referring to transparent gateways but to heterogenous services (generic connectivity) which come free with the DB:
http://www.oracle.com/technology/products/gateways/faq.html#A707

How to check the sql:query is return null value

I have use :
<sql:query var="sql1" dataSource="${db}">
select col_name from table_name
where a=<c:out value="${row.test1}"/>
and b='<c:out value="${row.test2}"/>'
</sql:query>
So, how can I check this statement return null value which is no record within this table?

The Result should never be null but can be empty. You can check if the Result is empty using an if tag and checking the rowCount property:
    <sql:query var="books"
      sql="select * from PUBLIC.books where id = ?" >
      <sql:param value="${bookId}" />
    </sql:query>
     <c:if test="${books.rowCount > 0}">
     </c:if>http://java.sun.com/j2ee/1.4/docs/tutorial/doc/JSTL7.html#wp84217
Look for query Tag Result Interface

JDBC Receiver Adapter with Null Value

HI,
I have configured ID for JDBC Receiver. In my communication channel, I already check Integration of Empty String Values = Null Value. However, when I check the result from audit log, it still shows that SAP XI sends the null value to database. In my understanding, it should not send the field which has null value (It shouldn't be included in sql statement).
I check this with other scenario. With the same check at Integration of Empty String Values = Null Value, it doesn't send null value to database. It happens only with my first scenario.
Have anyone ever been through this before? Any suggestion please?
Thanks,
Pavin

Hi,
1. The occurrence is 0...1
2. This is the first result with null value (Please see field Error)
UPDATE EXPCRM_T_CustomerProfile SET RequestID=455, RecordNo=1, SAPCustomerCode=0001000344, Error=NULL, Status=2, UpdateDateTime=12/03/2008 13:45:03 WHERE (RequestID=455 AND RecordNo=1)
Then, I change the option from Null Value to Empty string. This is the result.
UPDATE EXPCRM_T_CustomerProfile SET RequestID=455, RecordNo=1, SAPCustomerCode=0001000344, Error=', Status=2, UpdateDateTime=12/03/2008 13:46:12 WHERE (RequestID=455 AND RecordNo=1)
Field Error Change from NULL to '
The expected result from me is that field Error should not exist at all. Please help.
Thanks,
Pavin

Issue with Results from Another Query (Error on Null value)

Hi All,
We have a WebI report using "Result from Another Query" option of BO XI R3.1. The report was running fine till recently the dimension object using result from another query had a null value. Report suddenly throwed error as the query filters are invalid.
Is there a way to make this filter optional if no data/null value is there ? Because we need those null values in report as well.
Thank you for your time.
Thanks & Regards
LN

Hi Vivek,
It was not directly solved but I applied alternate logic to over come the issue.
Here's what I did to overcome:
I used a sub query in place of the whole result from another query.
For Ex:
Dim1 inlist result from another query1
I made it as
Dim1 inlist (Dim0)
where Conditions.
Here Dim0 is the object which we use for Result from another query and Conditions will be the necessary filter conditions to arrive proper Dim0. Make sure proper context is formed for the sub query.
Even though it resolved my problem, It introduces an new issue. It causes increase in query run time when huge set of data is returned from sub query.
Please let me know if i haven't explained clearly.
Hi Aris_BO,
Sorry for not responding earlier. The logic would probably make more queries null & not null. Thats why I was not advised to use it.
Thanks
LN

Pass a null value to a JDBC stored procedure call?

pass a null value to a JDBC stored procedure call? Is this even possible? My DBA gave me a procedure to call that sometimes requires a null value. I don't think this is even possible.

do you mind tell me how to resolve your problem?i using the setnull method,but it doesn't work.

Update table all null values to 0 single query

hi dear ;
How Can I do , update table all null values to 0 using single query or procedure

declare @tableName nvarchar(100)
declare @querys varchar(max)
set @querys = ''
set @tableName = 'YOUR TABLE NAME HERE'
select @querys = @querys + 'update ' + @tableName + ' set ' +
QUOTENAME(t.[name]) + '=0 where ' + QUOTENAME(t.[name]) + ' is null;'
from (SELECT [name] FROM syscolumns
WHERE id = (SELECT id
FROM sysobjects
WHERE type = 'U'
AND [NAME] = @tableName))t
select @querys
execute sp_executesql @sqlQuery
Reference:
http://stackoverflow.com/questions/6130133/sql-server-update-all-null-field-as-0
-Vaibhav Chaudhari
this code is return update TABLE set [FIELD]=isnull([FIELD],''),update TABLE set [FIELD2]=isnull([FIELD2],'')
I want to use UPDATE TABLE SET FIELD1=ISNULL(FIELD1,0),FIELD2=ISNULL(FIELD2,0),FIELD3=ISNULL(FIELD3,0) So CUT another update and set statement .

How to query for a NULL value?

Hi all,
how can I query for a NULL value in a ViewObject. I tried to set null as where-clause param [setWhereClauseParam(0, null)]. But the created statement looks like this:
SELECT ...
FROM ...
WHERE param = null
I would expect it to create something like WHERE param IS NULL. I hope anybody has a solution for this.
Thanks,
Axel

I think you should use setWhereClause("COL_NAME IS NULL")
You could use setWhereClauseParam(0, "NULL"), but only if you have a predefined query similar to: "SELECT X, Y, Z FROM A WHERE X IS :0" (which is a pretty useless query, as you can ONLY set "NULL" as the value for ":0").

JDBC Querying Null Values

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