Wednesday, March 27, 2013

Signal 11 Error in Oracle Report

Unhandled Exceptions in Oracle report results in generic signal 11 error, most of the time.

Identifying the cause
Run the report in Oracle report builder with correct input parameter values.
Navigation : File->Generate to File->XML

If report errors with signal 11 in oracle apps,  then running the report in report builder will throw exception with meaningful error message.


  • There is no provision for handling exceptions in main query block in Oracle report,  so if main block query has some issue,  it will result in signal 11 error or some warning, without showing meaningful error message. Mostly,  the reason main query block fails is because of :
    exact fetch returns more than one requested number of rows :  select sub-query in main query block returning multiple rows or user defined function throwing exception.
    numeric or value error : to_number function on alphanumeric column or joining two different data type columns.

  • Unhandled exceptions in report triggers
    validation trigger or after parameter form trigger or any other trigger having incorrect select queries or variable assignments which are not handled in exception block.

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