Hi Arno,
Beginning with Visual COBOL V2.3 we added the directive SQL(PROCOB) for programs compiled to managed code using DBMAN=ADO. This will provide better compatibility with applications that used to run with Oracles Pro*COBOL precompiler.
Setting SQL(PROCOB) now also sets SQL(CHECKSINGLETON). When SQL(PROCOB) is set, OpenESQL error codes in the SQLCA are converted to Pro*COBOL-compatible error codes, which are controlled by a new file, mfpcocds.txt. This file is delivered in %ProgramData%\Micro Focus\SQLCODES by default.
Please see the full documentation for the PROCOB directive here:
Thanks