SQL Statement error - ORA-00903: invalid table name

Question

Hi
I have written a sql script that gets executed from a form within e-business suite. Unfortunately, the script is falling over with an error:
unknown command beginning "MERGE INTO..." - rest of line ignored.
unknown command beginning "USING edop..." - rest of line ignored.
unknown command beginning "ON (elw.ro..." - rest of line ignored.
unknown command beginning "WHEN MATCH..." - rest of line ignored.
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      SET ELW.billed_flag          = t.billed_flag,
ERROR at line 2:
ORA-00903: invalid table name the actual statement that is causing the issue is:
MERGE INTO edopaif.table1 elw
USING edopaif.tablw2 t
ON (elw.rowid = t.LOAD_WORKING_ROWID)
WHEN MATCHED THEN
   UPDATE
      SET ELW.billed_flag          = t.billed_flag,
          ELW.last_bill_generated   = t.last_bill_generated,
          ELW.last_bill_type        = t.last_bill_type,
          ELW.load_month            = t.load_month,
          ELW.BILL_TRANSACTION_ID   = t.bill_transaction_id
WHEN NOT MATCHED THEN
   INSERT(error_meaning)
   VALUES('ROWID error with ins_ptia');The version of e-business suite that we are using is: 11.5.10.2.
The version of the Oracle database that we are using is:
Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
PL/SQL Release 9.2.0.6.0 - Production
CORE 9.2.0.6.0 Production
TNS for IBM/AIX RISC System/6000: Version 9.2.0.6.0 - Production
NLSRTL Version 9.2.0.6.0 - Production
Please note that I am able to successfully run the statement directly connected as the APPS schema in the database - the error only occurs when the script is run from the forms front-end (which is really confusing me).
Many thanks
Paul

Answer 1

Hi
I've modified the script to include only the statement that is erroring and it still errors when executed from the front end application.
Next I re-wrote the statement to use PL/SQL instead of the MERGE statement, to do the update, and the script completes succesfully, i.e.:
DECLARE
   CURSOR cu_lw IS
         SELECT t.billed_flag,
                t.last_bill_generated,
                t.last_bill_type,
                t.load_month,
                t.bill_transaction_id,
                t.load_working_rowid
           FROM table2 t;
BEGIN
   FOR rec_cu_lw IN cu_lw LOOP
      UPDATE table1 elw
         SET ELW.billed_flag           = rec_cu_lw.billed_flag,
          ELW.last_bill_generated      = rec_cu_lw.last_bill_generated,
          ELW.last_bill_type           = rec_cu_lw.last_bill_type,
          ELW.load_month               = rec_cu_lw.load_month,
          ELW.BILL_TRANSACTION_ID      = rec_cu_lw.bill_transaction_id
      WHERE elw.rowid                  = rec_cu_lw.load_working_rowid;
   END LOOP;
END;
/I am still unsure as to why the MERGE statement is failing when executed in the front end, but completes in the backend with no issues at all. Obviously I would prefer to use the MERGE statement instead of PL/SQL to do the update.
Thanks
Paul