Forms 10.1.2.3 Compilation against an 11.2 DB Fails with PL/SQL ERROR 801 ... internal error 
Last updated on OCTOBER 31, 2016
Applies to:Oracle Forms - Version 10.1.2.3.0 to 10.1.2.3.0 [Release 10.1.2.3]
Information in this document applies to any platform.
***Checked for relevance on 12-May-2014***
***Checked for relevance on 09-Nov-2015***
A 10gR2 Form can not be generated against an 11.2 DB, among the errors encountered are:
Compilation error on procedure XYZ :
PL/SQL ERROR 801 at line 1, column 1 internal error 
The compilation has no problem when done against a 10.1 DB.
Now using an 11.2 DB
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