RE: pipelined functions and rolling back dml: proper way to do this?

  • From: "Dunbar, Norman (Capgemini)" <norman.dunbar.capgemini@xxxxxxxxxxxxxxxxxxxxxxxxx>
  • To: "sacrophyte@xxxxxxxxx" <sacrophyte@xxxxxxxxx>, ORACLE-L <oracle-l@xxxxxxxxxxxxx>
  • Date: Thu, 13 Oct 2011 06:54:47 +0000

Morning Charles,

>>    /* Process audit fee assessment. */
>>    callBannerAPIhere(with_some_parameters);

I suspect that what you need to do now is "bulk collect" the table into a local 
collection. That way, you get the data locally stored and should be able to 
rollback at any point thereafter without losing the data.

>> When I try to rollback (does not seem to matter where), I get:
>> ORA-04092: cannot ROLLBACK in a trigger
Is your code being called from a trigger at some point? If so, then you cannot 
rollback in a trigger, no matter how deeply nested the code executing the 
rollback is.

>> *Using AUTONOMOUS pragma*
>> If I put the rollback after I close the cursor, I get:
>> ORA-06519: active autonomous transaction detected and rolled back

>> If I put the rollback before I PIPE ROW (as suggested by Oracle
>> documentation), I get:
>> ORA-01002: fetch out of sequence
This will be cured by bulk collecting all the data from SQL into PL/SQL. (At 
least, it should be cured!)

COMMIT and ROLLBACK in a loop reading a cursor will give you this error. Grab 
all the data and you should be ok. The ROLLBACK in a Trigger not withstanding.

The ideal solution is to drop the banner results "temporary" table and create a 
proper global temporary table - I think - and simply leave it to drop the rows 
on commit. That way, existing code can still rollback and your own code doesn't 
have to worry about the rows remaining around because you cannot rollback.

As ever, test first in a unimportant location.


Cheers,
Norm.

Norman Dunbar
Contract Senior Oracle DBA
Capgemini Database Build Team
Internal : 7 28 2051
External : 0113 231 2051

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