Deleting with multi-table mapping

I have an object that is mapped to two tables, i.e., one object is split across two tables. When I do a deleteallquery it only executes a delete for one of the tables:
DELETE FROM DIRECT2TABLESPART1
Inserts, selects, and updates all work correctly and manipulate both tables. Is there something explicit I have to do to get it to execute the delete for the other table?

The class DeleteAllQuery should only be used internally by TopLink, it is not for external use. It is only used in TopLink from a 1-m mapping and only in the case where multiple tables and private relations do not exist such that the delete of all of the objects can be optimized.
TopLink does not currently provide delete-all/update-all style of queries, you must either delete the objects one by one, or issue custom SQL to delete a set of objects.

Similar Messages

Help with multi-table mapping for one-to-many object inheritance

Hi,
I have posted on here before regarding this (Toplink mapping for one-to-many object inheritance but I am still having problems mapping my object model to my schema.
Object model
The Person and Organisation objects contain base information and have the primary keys person_id and organisation_id. It is important that there is no duplication of person and organisation records, no matter how many times they are saved in different roles.
There are two types of licenceholder in the problem domain, and the ILicenceHolder interface defines information and methods that are common to both. The PersonalLicenceHolder object represents one of these types of licenceholder, and is always a person, so this class extends Person and implements ILicenceHolder.
The additional information and methods that are required by the second type of licenceholder are defined in the interface IPremisesLicenceHolder, which extends ILicenceHolder. Premises licence holders can either be people or organisations, so I have two objects to represent these - PremisesLicenceHolderPerson which implements IPremisesLicenceHolder and extends Person, and PremisesLicenceHolderOrganisation which implements IPremisesLicenceHolder and extends Organisation.
The model is further complicated by the fact that any single Person may be both a PersonalLicenceHolder and a PremisesLicenceHolderPerson, and may be so several times over. In this case, the same basic Person information needs to be linked to several different sets of licenceholder information. In the same way, any single Organisation may be a PremisesLicenceHolderOrganisation several times over.
Sorry this is complicated!
Schema
I have Person and Organisation tables containing the basic information with the primary keys person_id and organisation_id.
I have tried to follow Donald Smith's advice and have created a Role table to record the specialised information for the different types of licence holder. I want the foreign keys in this table to be licenceholder_id and licence_id. Licenceholder_id will reference either organisation_id or person_id, and licence_id will reference the primary key of the Licence table to link the licenceholder to the licence. Because I am struggling with the mapping, I have changed licenceholder_id to person_id in an attempt to get it working with the Person object before I try the Organisation.
Then, when a new licenceholder is added, if the person/organisation is already in the database, a new record is created in the Role table linking the existing person/organisation to the existing licence rather than duplicating the person/organisation information.
Mapping
I am trying to use the toplink mapping workbench to map my PremisesLicenceHolderPerson object to my schema. I have mapped all inherited attributes to superclass (Person). The primary table that the attributes are mapped to is Person, and I have used the multi-table info tab to add Roles as an additional table and map the remaining attributes to that.
I have created the references PERSON_ROLES which maps person.person_id to roles.person_id, ROLES_PERSON which maps roles.person_id to person.person_id and ROLES_LICENCE which maps roles.licence_id to licence.licence_id.
I think I have put in all the relationships, but I cannot get rid of the error message "The following primary key fields are unmapped: PERSON_ID".
Please can somebody tell me how to map this properly?
Thank you.

I'm not positive about your mappings, but it looks like the Person object should really have a 1:M or M:M mapping to the Licenceholder table. This then means that your object model should be similar, in that Person object could have many Licenses, instead of being LicenceHolders. From the looks of it, you have it set up from the LicenceHolder perspective. What could be done instead if a LicenceHolder could have a 1:1 reference to a person data object, rather than actually be a Person. This would allow the person data to be easily shared among licences.
LicenceHolder1 has an entry in the LicenceHolder table and Person table. LicenceHolder2 also has entries in these tables, but uses the same entry in the Person table- essentially it is the same person/person_ID. If both are new objects, TopLink would try to insert the same person object into the Person table twice. I'm not sure how you have gotten around or are planning to get around this problem.
Since you are using inheritance, it means that LicenceHolder needs a writable mapping to the person.person_id field- most commonly done through a direct to field mapping. From the description, it looks like roles.person_id is a foreign key in the multiple table mapping, meaning it would be set based on the value in the person.person_id field, but the person.person_id isn't actually mapped in the object. Check to make sure that the ID attribute LicenceHolder is inheriting from person hasn't been remapped in the LicenceHolder descriptor to a different field.
Best Regards,
Chris

Multi-table mapping is not inserting into the primary table first.

I have an inheritance mapping where the children are mapped to the parent table oids with the "Multi-Table Info" tab.
One of children is not inserting properly. Its insert is attempting to insert into one of the tables from the "Additional Tables" of "Multi-Table Info" instead of the primary table that it is mapped to.
The other children insert correctly. This child is not much different from those.
I looked through the forums, but found nothing similiar.

I would expect the Children to be inserted into both the primary table and the Additional Table? Is the object in question inserted into the primary table at all? Is the problem that it is being inserted into the Additional Table first? If it is, are the primary key names different? Is it a foreign key relationship?
If the object in question has no fields in the additional table is it mapped to the additional table? (it should not be)
Perhaps providing the deployment XML will help determine the problem,
--Gordon

Number of record with multi-table insert

Hi,
I need to insert into 3 different tables from one big source table so I decided to use multi-table insert. I could use three inserts statements but the source table is an external table and I would prefer not reading it three times.
I wonder if there is a way to get the exact number of records inserted in each one of the tables?
I tried using rowcount but I all I get is the number of rows inserted in all three tables. Is there a way to get this info without having to execute a "select count" in each table afterward?
Thanks
INSERT /*+ APPEND */
WHEN RES_ENS='PU' THEN
INTO TABLE1
VALUES(CD_ORGNS, NO_ORGNS, DT_DEB, SYSDATE)
WHEN RES_ENS='PR' THEN
INTO TABLE2
VALUES(CD_ORGNS, UNO_ORGNS, DT_DEB, SYSDATE)
ELSE
INTO TABLE3
VALUES(CD_ORGNS, NO_ORGNS, DT_DEB, SYSDATE)
SELECT ES.CD_ORGNS CD_ORGNS, ES.RES_ENS RES_ENS, ES.DT_DEB DT_DEB, ES.NO_ORGNS NO_ORGNS
FROM ETABL_ENSGN_SUP ES

I have a large number of data to load in those three tables. I do not want to use PL/SQL (with loops and lines of codes) because I can do the insert directly from the source table and it saves a lot of time.
INSERT /*+APPEND*/
WHEN condition1 THEN
INTO table1
WHEN condition2 THEN
INTO table2
SELECT xx FROM my_table
For example, if my_table has 750000000 rows, I only need to read it once and the INSERT..SELECT is a really fast way to load data.
As I was saying, the only problem I've got, is that I cannot get the number of rows in each table. Do you know a way to get it?

Insert with multi-table

Hi
I wonder if the experts in the forum could comment on this usage.
We have a Service class mapped to a Services table. We have a WhatsHotService class, that extends the Service class but adds a "rank" attribute, and this is mapped to a HotServices table that contains a "rank" column and a serviceId foreign key. A multitable mapping is used that brings in the Services table.
This setup works well for reading and we get the results we expect. Now we come to inserts and deletes! How would we go about turning a service into a what's hot service, keeping the Services row we already have but getting Toplink to insert a row into the WhatsHotServices table with the serviceId and rank?
Or is this usage model completely flawed? Previously the WhatsHotService did not extend Service but aggregated it with the rank. This model needed a one-one mapping to a Service object. The issue was that we wanted a WhatsHotService to behave exactly like a Service externally and did not want to recreate all the Service methods in the WhatsHotService class, particularly since we also have WhatsNewService and WhatsComingService.
Many thanks if you can comment on our usage or how we can achieve inserts and deletes
James

Sounds like a possible difficult usage of inheritance if an existing server object suddenly becomes a hot service. You may consider having a ServiceType instead,
i.e.
Service
- type -> ServiceType
|-- HotServiceType
|-- NewServiceType
|-- ComingServiceType
Otherwise it would probably be easiest to delete the old service and insert a new service when changing a Service to a HotService.

Strange issue with Multi-Table LTS and report filters (10g)

Hi,
I am having some troubles with the following scenario:
I have a large flattened table that is being used as both Fact and Dimension in the BMM layer. I also have another table that contains some supplementary measures needed by some reports.
Logical Fact table has an LTS that consists of the 2 tables which are joined on 2 columns (eg, a.col1 = b.col1 and a.col2 = b.col2, etc). The columns used in the join also exist in the logical dimension which uses the same flattened table. I use these columns in my report filters.
I have created some Fact measures, some from each source inside the LTS.
What's happening is that when I am using this model in Answers, the query being generated is applying my filtering conditions to both tables, which seems unnecessary to me since they are joined on these columns.
i.e.,
select *
from table1 a, table2 b
where a.col1 = b.col1
and a.col2 = b.col2
and a.col1 = 'Value 1'
and a.col2 = 'Value 2'
and b.col1 = 'Value 1'
and b.col1 = 'Value 2'
The last two lines in the query above should not be happening. I have not mapped these columns anywhere in the BMM to table2 (other than physical layer join), only to table1.
For clarification, it's not hurting the end results from what I've seen, but it is adding additional filtering to the query that can increase overall cost, which I'm trying to avoid.
Any ideas/suggestions?
Thanks
Edited by: odinsride on Jan 31, 2012 5:03 PM

Hi,
I think this is a known issue. I think that the BI Server pulls in both the tables involved in the LTS for any query (Yes, even if the query has only one column from any of the tables in LTS) and so are the filters.
In this case, what I would suggest you is to create 2 LTS (probably 3). One for each physical table (that are being joined in the LTS) and one for both of them joined (may be inner/left/right) etc.
With this kind of setup, when there are reports for any particular column of this logical table, the BI Server can go and choose the corresponding LTS only. However, if there is a report with columns from both the tables, the BI Server would choose the LTS with the join.
Hope this helps.
Thank you,
Dhar

Change crystal report data source dynamically failed with multi tables report

hello all
i have many reports created by someone else on his own machine using same database file i use
my application use Visual studio 2013 win form with crystal report pack 9
i use rpt files provided to me
connect database use OLEDB
to show form i use below code
SQLstr = " select what ever from table "                      ' defined as Public
reportName = rpt file path & report name
showReport()
public sub showReport()
reportTable.clear()                                                       ' defined as Public
DBAdapter = new oleDpdataAdapter(SQLstr,DBconnection)
DBAdapter.fill(reportTable)
dim rptDoc as new Crystaldesicin.crystalreports.Engine.ReportDocument
rptDoc.load(reportName)
rptDoc.setdatasource(reportTable)
formRpt.RptViewer.reportsource = rptDoc
formRpt.showdialog()
now
when i use one table report with (select from one table) >>>>> works perfectly
but when i use report retrieve data from 2 tables and group   data like using
SQLstr = " select 'table'.'coulumn', 'table2'.'column' ....... etc
from 'table1'
INNER JOIN 'table2' ON 'table'.'coulumn' = 'table2'.'column'
it's not working and formrpt shown but asking for database login
I noted that in database login window : server name refer to ORIGINAL DATABASE USED BY Report Creator not to my local database
================================================
i tried to set
rptDoc.datasourceconnection.item(0).setconnection("","databse file path and name", False)
rptDoc.datasourceconnection.item(0).setlogin("admin","")
but the same
using dataset instead of reportTable the same error
================================================
what i missed in this type of reports?
( apologize about long take and poor English )

Hi
Please have a look at the wiki Troubleshooting Issues with VS .NET Datasets and Crystal Reports.
- Ludek
Senior Support Engineer AGS Product Support, Global Support Center Canada
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Updating one table with mult. table where clause

I'm having problems with my update statement. I want to update one table that has a mulitple table where clause. Not sure how to accomplish this. Here is what I have so far.
update lawson.apvenmast a
set vendor_status = 'I'
where ((select * from apinvoice i
where i.due_date <= TO_DATE('20011231', 'YYYYMMDD') and
i.vendor = a.vendor)
((apvenmast.ven_class = 'INS') or
(apvenmast.ven_class = 'REF')));
Am I on the right track?
thanks in advance for any help.
Lisa Mears

A lot is missing.
where ((select * from apinvoice iA where clause should be like
where <something> IN (select <something> from ...)
((apvenmast.ven_class = 'INS') or
(apvenmast.ven_class = 'REF')));Where does this belong? There is no AND or OR with these two lines.
Check your table aliases too.

Group data with multi tables in report.rdlc

I have a report.rdlc which contains 8 tables and every table reads from different dataset which also reads from different procedure, these tables finally view data for one employee, and this was working correctly. Now I need to view the same report but
for multi employees, I don't know how to make one group(employee number) for the 8 tables although they have different datasets and procedures
this is a Pressing problem
please help me

Hi nermo,
According to your description, you want to display 8 tables in detail rows group on employee number. So it will have 8 tables for each employee. Right?
In this scenario, we can create a dataset whick only return the employee number and put the employee number into a table. Put the 8 tables into 8 separated reports, then add these reports as subreports into detail row. It will display these data even they
are from 8 different dataset. If you want to filter the records in those tables based on the employee number. You need to have the Employee parameter in both main report and subreports and pass the parameter to run subreports. We have tested in this scenario
in our local environment. Here are screenshots for your reference:
Reference:
SSRS Subreport Parameter Passing Issue
If you have any question, please feel free to ask.
Best Regards,
Simon Hou

Multi Table mapping support in EJB 3

Hi,
I wanted to get some inputs regarding the @SecondaryTables / @SecondaryTable annotation support in JSR 220 ..
As per my understanding its to be used to map the logical Entity(in java) to physically different Datasources ??
Basically the requirement is that given a POJO Entity in java , one can map the various properties to the columns of different Table's.
Say I have defined multiple datasources viz. MySql, Oracle, HSQL etc..
I should be able to map my Java entity to some of the columns of these DB's tables !!!
As per my experiments, I have been able to define multiple Persistence Units..
Say .PAR archives which has the persistence.xml file.
However I haven't been able to achieve the above requiement ..
It seems that one can only use the same physical DB & the different schema tables for mapping the Entity ?
Can someone elaborate more on this Annotation ?

Hi,
I wanted to get some inputs regarding the @SecondaryTables / @SecondaryTable annotation support in JSR 220 ..
As per my understanding its to be used to map the logical Entity(in java) to physically different Datasources ??
Basically the requirement is that given a POJO Entity in java , one can map the various properties to the columns of different Table's.
Say I have defined multiple datasources viz. MySql, Oracle, HSQL etc..
I should be able to map my Java entity to some of the columns of these DB's tables !!!
As per my experiments, I have been able to define multiple Persistence Units..
Say .PAR archives which has the persistence.xml file.
However I haven't been able to achieve the above requiement ..
It seems that one can only use the same physical DB & the different schema tables for mapping the Entity ?
Can someone elaborate more on this Annotation ?

Help with multi-table join

Hello -
HELP!!!!! I need to join the following tables so I can compare the totals of colVal1+colVal2+colVal3 in tblIMP with ColTOTAL_NVal in AnotherDB.dbo.BL
Below are the important columns along with relationships from the tables. Is this even possible?
tblIMP
PK IMP integer
TNum
colVal1
colVal2
colVal3
colVal4
tblSC
PK IntCNum numeric(7,)
FK ISN numeric(8,0)
TNum
tblSD
PK IntSLNum numeric(7,0)
FK ISN
tblSH
PK ISN numeric(8,0)
Sh_ID nvarchar(25)
AnotherDB.dbo.BL
PK BL_ID integer
Sh_ID nvarchar(100)
ColTOTAL_NVal
TNum in tblIMP has duplicates (not for the row, but for TNum itself)
TNum in tblSC has duplicates also (not for the row, but for TNum itself)
tblSH has a one-to-many relationship with tblSC;
tblSH has a one-to-many relationship with tblSD;
tblSD has a one-to-many relationship with tblSC
tblSC is a recursive table – think container with many TNum in it
ANY HELP AT ALL WILL BE APPRECIATED!!!
Juniormint

Thanks for your response, Latheesh.
I would have posted the DDL, sample data and desired output, but I'm on a contract job and am unable to divulge that information. Is there anything that is not understandable with what I have posted? If so, please let me know.
Juniormint
You need to atleast explain us with some INDICATIVE data how your tables hold information and how you want the output to appear. Otherwise its hard for us by just looking at some table structure alone as we cant see your system neither knows your rules.
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Dump selective with multi tables and multi querys

Hi all,
I need generate dump from selective query.
Example
TableA
TableB
TableC
I need export TableA and TableB. TableA only record with 'fieldA' > 0 and TableB only record with 'fieldB' < 0. Is it possible?
I try exp command but I have problem with query parameter.
Exp USER/[email protected]:1521/myschema
file="mydump.dmp"
log="myLog.log"
tables=TableA,TableB
query=TableA:\"WHERE fieldA > 0\" TableB:\"WHERE fieldB > 0\"
Can you help me, please?
Thanks
Luca

Hi,
i think in normal exp you can not use multiple Query, you have to do it one by one
i.e
exp scott/tiger file=exp_tabel.dmp log=exp_tabel.log tables=emp query=\"WHERE sal \>4000\" statistics=nonewhile you can do it by using the expdp something like this
expdp scott/tiger directory=DATA_DD_DIR dumpfile=exp_tabel.dmp logfile=exp_tabel.log tables=emp,dept query=emp:\"WHERE sal > 4000\", dept:\"where deptno > 20\"What version of db you are using? better to use datapump
HTH

Multi-Message Mapping based on value of field - (Without BPM)

Hi.
I am having a bit of difficulty with multi-message mapping without BPM. I want to map to message1 & message2 based on a field in the rows of the source structure.
e.g.
row1-Source-Field1=> (if equal 0) => Message1-field1.
row2-Source-Field1=> (if equal 10) => Message2-field1.
To attempt to do this, I use the conditions in the graphical mapper:
if row-Source-Field1 = 0 => Map "Row to MessageType1".
if row-Source-Field1 = 10 => Map "Row to MessageType2".
However when I test this the mapping only seems to consider the first row value in row-Source-Field1 and ignores the fact that row two has a value of 10. I think this has something to do with contexts etc..
I would appreciate any help please.
Regards.
Mick.

in that case try this out
row1-source-field1 (remove context) -- UDF -splitbyvalue-target
UDF1(for message 1)
for(int i=0;i<field1.length;i++)
if(field1.equals("0"))
result.addValue(<field to be mapped>);
UDF2(for message 2)
for(int i=0;i<field1.length;i++)
if(field1.equals("10"))
result.addValue(<field to be mapped>);

Multi Table Formatting

Hi All
I seem to have this peculiar problem with multi table formatting.
I have a multi group report.Each being a cross tab with same width and number of columns. I wanted to know if there is any way by which we can make the table follow each other with no gap in between. Table 2 attaches itself to table 1 and so on.
I have tried most of the table properties and even reducing the space between the tables but in the pdf output there seems to be a constant space.
Thanks in advance

You can do that in single table itself , as one of our friend mentioned above, still you want to do it in multiple table.
You can change the line spacing from single line spacing between the table to exact and can give 1pt
try this. otherwise
send me your xml data and template to,
fusionDOTobject AT gmailDOTcom
i will have glance at it,and see if i can help.

Issues in Table with Multi-Row Insert

I have created a master detail screens using jheadstart on 2 separate pages, Master in the Form layout and detail in the Table Layout with multi-row insert, update and delete flags ON. Have set the New Rows count = 2.
Issue 1
If I try to delete any existing rows, it gives error for new rows saying value is required for the mandatory fields. It should just ignore the new rows if I have not updated any values for any attributes in the those row(As it does for non Master-Detail Table layout). I guess this might be happening because the jheadstart code is setting the foreign key for new rows the detail, but not resetting the status of the rows back to INITIALIZED.
I also noticed that the create() of underlying EO is getting called for those blank rows when I click on 'Save' button, even if I have not changed any data in those rows.
Issue 2
When I try to select the new rows also for deletion, I am getting a '500 Internal Server Error' with following stack trace... This is also happening for normal (non Master-Detail) Table layout.
java.lang.IllegalStateException: AdfFacesContext was already released or had never been attached. at oracle.adf.view.faces.context.AdfFacesContext.release(AdfFacesContext.java:342) at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:253) at oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:87)
Issue 3
I have put some validation code in the validate() method in the MyEntityImpl.java class.
The validate method seems tobe getting called lots of times, in my case 20 times, where the new rows are just 2.
Environment:
Jdeveloper 10.1.3, JHeadStart 10.1.3 build 78, Windows XP
thanks

Thanks for the reply.
Issue 1:
What I have observed that in case of multi-row select enabled tables, the blank rows do not have any data. This is because the EO's create() method is called only when we post the data using 'Save' button. Thus the Foreign Keys are also not setup. This is a correct behavior since create() and FK setups etc should get done only if the user has inputted any value in the new rows and thus intend to insert new data into the table.
I am able to find the exact cause of this issue. It is happening because in the details table, I have a column which needs tobe shown as checkbox. Since we can only bind checkbox to an Boolean attribute in VO, I have created a transient attribute of type Boolean, which basically calls the getter/setter of actual attribute doing the String "Y"/"N" to true/false conversion. Here is code for the transient attribute getter/setter
public Boolean getDisplayOnWebBoolean() {
return "Y".equals(getDisplayOnWeb()) ? Boolean.TRUE : Boolean.FALSE;
public void setDisplayOnWebBoolean(Boolean value) {
if(Boolean.TRUE.equals(value))
setDisplayOnWeb("Y");
else
setDisplayOnWeb("N");
Now when I click on the "Save" button, the setter for the boolean field is getting called with the value = false and this is resulting into the row being maked as dirty and thus the validation for the required attributes is getting executed and failing.
Issue 2:
Confirmed that correct filter-mapping entries are present in the web.xml.
Now when I select the new blank rows for deletion and click save, following exception is thrown:
java.lang.ClassCastException: oracle.jheadstart.controller.jsf.bean.NewTableRowBean at oracle.jheadstart.controller.jsf.bean.JhsCollectionModel.getRowsToRemove(JhsCollectionModel.java:412) at oracle.jheadstart.controller.jsf.bean.JhsCollectionModel.doModelUpdate(JhsCollectionModel.java:604) at oracle.jheadstart.controller.jsf.lifecycle.JhsPageLifecycle.processModelUpdaters(JhsPageLifecycle.java:541) at oracle.jheadstart.controller.jsf.lifecycle.JhsPageLifecycle.validateModelUpdates(JhsPageLifecycle.java:571)
thanks - rutwik

Deleting with multi-table mapping

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