Problem with execution

Question

Hi,
I got the following error.
can anybody help with it.
This is expicit block.
1 BEGIN
2 DBMS_STREAMS_ADM.ADD_TABLE_RULES(
3 table_name => 'SOURCESTAT.DEMOTABLE',
4 streams_type => 'capture',
5 streams_name => 'DEMOTABLE_STREAM',
6 queue_name => 'DEMOTABLE_QUEUE',
7 include_dml => True,
8 include_ddl => True);
9* END;
BEGIN
ERROR at line 1:
ORA-01422: exact fetch returns more than requested number of rows
ORA-06512: at "SYS.DBMS_STREAMS_ADM", line 75
ORA-06512: at "SYS.DBMS_STREAMS_ADM", line 21
ORA-06512: at line 2
I am not getting where is the exact problem.
please do help me.
Thanks,
Mandar

Answer 1

The underlaying PL/SQL code, DBMS_STREAMS_ADM.ADD_TABLE_RULES, run a SELECT statement that expects a single row. The code usually look something like this:
SELECT * into var FROM table WHERE some_condition
The PL/SQL code/logic expects a single row to be returned by that SELECT statement. However it does not and the PL/SQL Engine raises an exception as it cannot handle multi rows for a single row fetch.
As you're calling Oracle PL/SQL code, I would assume that there is a problem with the parameters that you supplied that caused this error.
Check the manual, and confirm that you are indeed passing valid/sensible parameters to the PL/SQL package.