While the conversion utility can convert many of the PL/SQL incompatibilities it encounters, some situations require you to address them manually:
Unique names required within a package
Standard package function no longer used
New reserved words in PL/SQL V2.3 or later
%ROWTYPE or %TYPE required in variable declarations
The warning:
Encountered a non-recoverable error; conversion aborted at line line
number column column
displays when there is a fatal compiler error and the conversion process cannot continue.
About the PL/SQL conversion utility
Converting reports interactively
Converting reports in batch mode
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