Using ResultSet to read records from multiple tables

Im using a ResultSet object to read records from tables.
I have a database with 5 tables. Initially, I got it to work fine with one of those tables. What Im exactly trying to do is check if there is a record in a table which matches a given string, and if it does, display some text on some JTextFields. I got that to work fine with one table.
Problem is, how do I get it to work with all 5 tables at the same time?
i.e. instead of searching through one table, I want it to look through all 5 tables and look for the matches.
Any help greatly appreciated.
Thanks

After the first interaction with the first table, I
used a stmt.getMoreResults() followed by instructions
to get data from the second table, and so on.
Worked fine.Sounds remarkably inefficient. (Potential for lots of network traffic.)
is this another way of doing it?Sounds more like a document search type of thing than a database query. What about Lucene? Could it help here?
%

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Records from multiple tables

Hi,
I have a method that has to access records from multiple tables and store them all in a file. It's something like this:
switch (tableId){
case 'A' : query="SELECT * FROM TABLE_A
WHERE ID = '" + tempId + "'";
ResultSet rs = stmt.executeQuery (query);
rs.close();
break;
case 'B' : query="SELECT * FROM TABLE_B
WHERE ID = '" + tempId + "'";
rs = stmt.executeQuery (query);
rs.close();
break;
case 'C' : query="SELECT * FROM TABLE_C
WHERE ID = '" + tempId + "'";
rs = stmt.executeQuery (query);
rs.close();
break;
My problem is that I get an "Invalid cursor" error the second time I enter the loop. I've been reading up on cursors but I still don't know what to do. Can I use ResultSet to return multiple rows from multiple tables? If not, what can I use? Please help!
Thanks in advance.

remove the "rs.close()" from the switch statement. use "rs.close()" after your loop ends.
prem

Delete records from multiple table

Hi,
I need to delete records from multiple tables using a single delete statement. Is it possible ? If so please let me know the procedure.
Kindly Help.
Thanks,
Alexander.

Hi Tim,
Syntax of DELETE statement does not allow for multiple tables to be specified in this way. Infact, none of the DMLs allow you to specify table names like this.
Technically, there are other ways of deleting from multiple tables with one statement.
1. "Use a trigger":
What was probably meant by this is that you have a driving-table on which you create a on-delete trigger. In this trigger, you write the logic for deleting from other tables that you want to delete from.
This does mean a one-time effort of writing the trigger. But the actual DML operation of deleting from all the tables would be simply triggered by a delete on driving-table.
2. Dynamic SQL:
Write a PL/SQL code to open a cursor with table-names from which you want the data to be deleted from. In the cursor-for loop, write a dynamic SQL using the table-name to delete from that table.
3. Using Foreign-Key constraint with Cascade-Delete:
This I feel is a more 'cleaner' way of doing this.
Having to delete data from multiple tables means that there is some kind of parent-child relationship between your tables. These relationships can be implemented in database using foreign-key constraints. While creating foreign-key constraint give the 'on delete cascade' clause to ensure that whenever data is deleted from parent-table, its dependent data is deleted from child-table.
Using foreign-key constraint you can create a heirarchy of parent-child relationships and still your DELETE would be simple as you would only have to delete from parent-table.
IMPORTANT: Implementing foreign-key constraints would also impact other DML operations that you should keep in mind.

How to read records from Relationship table using ABAP API's

Hi All,
I need to retrieve the records from Relationship table. In Java API's I came to know there is an option to retrieve this. I could not find anything in ABAP API's. Is there any option in ABAP API's to do this.
Please Suggest.
Thank You,
Gajendra.

Hi Gajendra,
You can mainly read records from MDM (in a DDIC structure) using ABAP API's using the following function modules/methods:
1. RETRIEVE: This is used to generically retrieve records from tables. Attributes and Values can also be retrieved.
2. RETRIEVE SIMPLE: Retrieve records from MDM in a simple way.( simple data types).
3. RETRIEVE CHECKOUT: Retrieves all checked out ID's.
4. RETRIEVE ATTRIBUTES: Retrieves attribute(s) from a Taxanomy table.
You will find all these methods in the following interface
Interface : IF_MDM_CORE_SERVICES
Hope it helps.
*Please reward points if found useful.
Thanks and Regards
Nitin Jain

Need assistance searching records from multiple tables - Please Help!

Hi, I've been trying to solve this problem for several weeks now, and I have exhausted all of my knowledge and experience. I need help, and I hope someone here can give me some direction.
I am using VB 2008, and the CR that comes bundled with VS 2008 Pro. My database is a SQL Server 2005 CE v3.5 (a *.sdf file). I am connecting to the database through a dataset, and I am displaying the report in a CrystalReportViewer.
My dataset consistes of two tables:
1) tblCustomers which has a primary key "CustID", and contains only customer contact and personal information.
2) tblDateVisited which has a primary key of "VisitID", but it also has a column titled "CustID". Basically, every time a customer visits the business, details of that visit are recorded in tblDateVisited, and that record is associated with the customer by their CustID.
Here's what I'm trying to accomplish: I want to be able to display only Customer records when the customer has visited and that visit matches certain criteria. Right now, I am trying to match visits from the "tblVisitDate.PlayerType" column. If the customer has ever had a visit where they matched a particular player type, I want to see those customer records.
I don't know what I'm doing wrong, though. I can search a dataset if I am only querying one table and pulling records from that table. However, whenever I try to add a second table and perform queries on that table to get records from the first table, I can't return any records.
If it helps, I am trying to use one CrystalReportViewer to display multiple reports (user choice) and here's how I'm loading the report into the viewer:
Me.tblCustomersTableAdapter.Fill(Me.dsPlayerTypeReports.tblCustomers)
Me.tblDateVisitedTableAdapter.Fill(Me.dsPlayerTypeReports.tblDateVisited)
Me.ReportFile.SetDataSource(dsPlayerTypeReports.Tables(1))
I am suspicious that my problem is in the Tables(1) method. It confuses me that I can only assign one table as a datasource when I obviously need access to two tables to make this selection work.
Whatever the case, I'm at the end of my rope with this one. I'm not prone to giving up, but I'm at a dead end currently.
Any attempt to assist me with this will be greatly appreciated, successful or not.
Thanks in advance!
-Will

No, I am connected via ADO.NET. I don't think SQL CE can connect through ODBC (or if it can, I haven't been able to figure out how, yet). So this isn't a stored procedure.
When I examine the link, I can only choose an Inner Join or a Left Outer Join. Right Outer and Full Outer are not available. Could this be a problem with the dataset I'm using?
Could you explain what you mean by display all of the records and then choose the selection criteria?

Sender JDBC Adapter : Fetch records from multiple tables

Hi Friends,
I am using sender JDBC adapter to select few records from DB2 database table.
This scenario is working fine.
Now my requirement is to fetch records from 3 tables. These table are independent to each other. There is no primary key or foreign key.
Please let me know how to write the sql in sender JDBC adapter to fetch records from these 3 tables.
Thanks,
Sandeep Maurya

hi sandeep...
if the tables are completely independent and do not share any primary / foreign key relation ship...
why dont u think towards creating a seperate interface for each of them..
or if u still want to select from multiple table at once..the best way would be to write a stored procedure on the sender side which do all the fetching n processing and pass the final resultset to PI
or u can think towards fetching the data from 1 table and then in UDF do lookup from other tables..which again is tricky and performace intensive

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hi
I have to extract almost 1 lack records from 3 tables.
Please help me in ABAP CODE.
PLease it is very urgent.

Which tables are they ? Refer to link below for more hints abt performance.
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Records from multiple table in Forms using Structure

Hi all,
I thought of bringing records from more than one table to smart forms.I have done the same by using two internal tables but not using with globally declared structure.Is it like this:
1.Create the global structure
2.In driver program create a internal table
3.Pull the data using select statement
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How to pass the internal table we created using structure to smartforms?
Thanks

Hi Gopi,
the procedure u r telling is correct.
create the structure(ex:zstruc) in se11 as the structure of the internal table.
*popluate the data into internal table.
*in smartform, u declare the internal table as that structure i.e itab type zstruc.
i.e in smartforms when u declare internal table, u r telling that ur internal table having the structure similar to the structure ZSTRUC.
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Read record from parent table

Hello,
I have a table which is linked (using FK) with a number of other tables which are linked with other tables, etc. (like a tree). Using ADO.NET EF provider within ODAC 11.2.0.3 Release 5 I am trying to get a record from the root table. I coded a test using MSTest and when I do "myContext.MyTable.Where(...).FirstOrDefault();" VS2010 stops the debugging process after a while - no exception is caught in code but I get an error in Test results window: "The test adapter 'UnitTestAdapter' threw an exception while running test '<my test>'. Exception has been thrown by the target of an invocation.
Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
In the Debug window/view I get this:
A first chance exception of type 'System.AccessViolationException' occurred in Oracle.DataAccess.dll
A first chance exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll
A first chance exception of type 'System.Reflection.TargetInvocationException' occurred in Microsoft.VisualStudio.QualityTools.Tips.UnitTest.Adapter.dll
Step into: Stepping over method without symbols 'Microsoft.VisualStudio.TestTools.Agent.AgentExecution.CallAdapterRunMethod'
W, 7380, 13, 2012/11/09, 23:33:29.803, QTAgent32.exe, AgentExecution: Exception while calling TestAdapter.Run: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at Oracle.DataAccess.Client.OpsDac.Read(IntPtr opsConCtx, IntPtr opsErrCtx, IntPtr opsSqlCtx, IntPtr& opsDacCtx, OpoSqlValCtx* pOpoSqlValCtx, OpoMetValCtx* pOpoMetValCtx, OpoDacValCtx* pOpoDacValCtx)
at Oracle.DataAccess.Client.OracleDataReader.Read()
at System.Data.Common.Internal.Materialization.Shaper`1.StoreRead()
at System.Data.Common.Internal.Materialization.Shaper`1.SimpleEnumerator.MoveNext()
at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable`1 source)
at System.Data.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__1[TResult](IEnumerable`1 sequence)
at System.Data.Objects.ELinq.ObjectQueryProvider.ExecuteSingle[TResult](IEnumerable`1 query, Expression queryRoot)
at System.Data.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[S](Expression expression)
at System.Linq.Queryable.FirstOrDefault[TSource](IQueryable`1 source)
at <my code stack>
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestExecuter.DefaultTestMethodInvoke(Object[] args)
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.DefaultTestMethodDecorator.Invoke(Object[] args)
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestExecuter.RunTestMethod()
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestExecuter.ExecuteTest()
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestExecuter.Execute(UnitTestResult result)
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestRunner.ExecuteSingleTest(UnitTestExecuter executer, UnitTestElement test, ITestContext testContext, UnitTestAdapterContext userContext, Boolean isLoadTest)
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestRunner.Run(UnitTestElement test, ITestContext testContext, Boolean isLoadTest, Boolean useMultipleCpus)
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestRunner.Run(UnitTestElement test, ITestContext testContext, Boolean isLoadTest, Boolean useMultipleCpus)
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestAdapter.Run(ITestElement testElement, ITestContext testContext, Boolean isLoadTest)
at Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestAdapter.Run(ITestElement testElement, ITestContext testContext)
at Microsoft.VisualStudio.TestTools.Agent.AgentExecution.CallAdapterRunMethod(Object obj)
The thread 'Agent: adapter run thread for test '<my test>' with id '0779674e-2258-44d4-adfe-65302abbe50f'' (0x13e0) has exited with code 0 (0x0).
W, 7380, 30, 2012/11/09, 23:33:29.869, QTAgent32.exe, Performance warning: m_test should be null when TestResult is serialized. Please find the offending code and correct it.
E, 7380, 30, 2012/11/09, 23:33:29.879, QTAgent32.exe, AgentExecution: Received adapter message during test shutdown: run id {94200779-4759-4b4a-819c-61c55d39acbc}, test '<my test>' with id 0779674e-2258-44d4-adfe-65302abbe50f: MessageKind: Result, Outcome: Error
The thread 'ExecutionUtilities.InvokeWithTimeout helper thread 'Microsoft.VisualStudio.TestTools.TestTypes.Unit.UnitTestAdapter.AbortTestRun'' (0x1f98) has exited with code 0 (0x0).
The thread 'Agent: state execution thread for test '<my test>' with id '0779674e-2258-44d4-adfe-65302abbe50f'' (0x2688) has exited with code 0 (0x0).
The thread 'Agent: test queue thread' (0x1c58) has exited with code 0 (0x0).
A first chance exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll
A first chance exception of type 'System.Threading.ThreadAbortException' occurred in Oracle.DataAccess.dll
A first chance exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll
The thread '<No Name>' (0x24c0) has exited with code 0 (0x0).
A first chance exception of type 'System.Threading.ThreadAbortException' occurred in System.Data.Entity.dll
A first chance exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll
A first chance exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll
The thread '<No Name>' (0x2410) has exited with code 0 (0x0).
The thread '<No Name>' (0x2520) has exited with code 0 (0x0).
E, 7380, 6, 2012/11/09, 23:35:17.912, QTAgent32.exe, AgentObject: Cleanup: Timeout reached in cleaning up the agent.
E, 7380, 6, 2012/11/09, 23:35:22.918, QTAgent32.exe, AgentObject: Cleanup: Timeout reached in cleaning up the agent.
The program '[7380] QTAgent32.exe: Managed (v4.0.30319)' has exited with code 0 (0x0).
Any idea is appreciated!
Thanks
Edited by: 917334 on Nov 10, 2012 12:17 AM
The equivalent where statement works well in classic ADO.NET.

Hello
Use the below function module
RV_ORDER_FLOW_INFORMATION pass the type as C and pass the number.You will get all the flow.
SELECT VBELN KNUMV BUKRS KUNRG REGIO NETWR FKSTO FKDAT FKART INTO CORRESPONDING FIELDS OF TABLE T_VBRK FROM VBRK WHERE BUKRS IN P_BUKRS AND FKDAT IN P_FKDAT AND VKORG IN P_VKORG AND REGIO = '07'
    ORDER BY VBELN KNUMV.
SORT T_VBRK BY vbeln.
LOOP AT T_VBRK.
    IF T_VBRK-FKART = 'F2' OR T_VBRK-FKART = 'YF2' OR T_VBRK-FKART = 'ZF2' OR
        T_VBRK-FKART = 'ZG2' OR T_VBRK-FKART = 'ZL2' OR T_VBRK-FKART = 'YG2' OR T_VBRK-FKART = 'YL2' .
      IF T_VBRK-FKSTO IS INITIAL.
i_vbco6-vbeln = t_vbrk-vbeln.
CALL FUNCTION 'RV_ORDER_FLOW_INFORMATION'
EXPORTING
AUFBEREITUNG        = '2'
BELEGTYP            = ' '
    COMWA               = i_vbco6
NACHFOLGER          = 'X'
N_STUFEN            = '50'
VORGAENGER          = 'X'
V_STUFEN            = '50'
IMPORTING
BELEGTYP_BACK       =
TABLES
    VBFA_TAB            = t_vbfa
EXCEPTIONS
   NO_VBFA             = 1
   NO_VBUK_FOUND       = 2
   OTHERS              = 3
endif.
ENDIF.
endloop.
loop at t_vbfa.
if t_vbfa-vbtyp_V = 'C' OR t_vbfa-vbtyp_V = 'K' OR t_vbfa-vbtyp_V = 'L' OR t_vbfa-vbtyp_V = 'E' .
*clear t_vbfa.
SELECT VBELN BSTNK BSTDK FROM VBAK INTO CORRESPONDING FIELDS OF TABLE T_VBAK FOR ALL ENTRIES IN T_VBFA WHERE VBELN = T_VBFA-VBELV .
endif.
ENDLOOP.
In case of any more help is required do let me know
Regards,
Nabheet Madan

Reading data from multiple tables on Apex

Hi All,
My apologies if the below question has been answered already, just that I could not find the relevant discussion.
I have an interactive report that I would like to use to display data from 2 tables:
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Table 2 has about 5 columns and I only want to display 2 of these columns(Column1 & Column2) on the same report with the above columns from table 1.
I need my report to look like this: field1 field2 field3 Column1 Column2
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Thanks in advance.

Hi There,
Thanks for your response, I've actually found and answer the question.
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Problem selecting records from multiple tables

Good day
I am writing a report showing actual vs budget amount per period. The actual amounts are in one table and the budget amount are in another table. In this example it is for vehicle sales. The problem is that in the budget table, there are no records for a particular make if it was not budgeted to make a sale. If I try to get the records using the select expert it matches the key in actual table with key in budget table and retrieve. What happens then is that the records in the actual table get excluded if there was not a record for it in the budget table. How do I then do this selection, i.e. if there is a record in the budget table, then retrieve, otherwise make the budget amount 0?
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This is always difficult the best way is to use a command and union the two sets of data.
First part uses a left outer join from Actual to Budget and brings back all actual data with and without a budget.
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select (field list) from
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left outer join Budget b on a.field = b.field
where (any other filter condition)
union all
select (field list) from
budget b
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my question is
there are three tables like A,B,C
i want the data from these tables with the help of relation
select a.simno,b.item_code,c.desc
from A a,B b,C c
WHERE a.ms=b.ms and
b.item_code=c.item_code
and a.ms=c.ms
the output for this query which i am getting is
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1 abc#def#xyz
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Refer to Asktom : http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2196162600402
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Table created.
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1 row created.
SQL> insert into test(simno,itemcode,desc1) values (1 ,'i2' ,'def') ;
1 row created.
SQL> insert into test(simno,itemcode,desc1) values (1 ,'i3' ,'xyz') ;
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1 row created.
SQL> insert into test(simno,itemcode,desc1) values (2 ,'i5' ,'poi');
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SQL> select simno,wmsys.wm_concat(desc1) CONCAT
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3 group by simno;
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CONCAT
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abc ,def ,xyz
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Dear All,
My Database is Oracle 11gR2 on Linux.
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Regards,
Imran

Duplicate thread - see https://forums.oracle.com/thread/2553380 for answer.

Using ResultSet to read records from multiple tables

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