DB Link functionality was removed from version 12.7 and this prevents the sensible accessing of databases from OPL by removing the availability of DBConnection, DBRead, DBUpdate and DBExecute.
Whilst there were various issues and bugs with the database connectivity in versions up to 12.6.3, the answer to a bug in a patient is to cure the bug not kill the patient.
Various workarounds have been proposed by IBM but these do not support manageable and maintainable solutions, particularly for numerous / large datasets. The workarounds also require programming skills generally out of the range of a business analyst who would be using OPL.
The native OPL database connectivity functionality should be reintroduced, most likely using a different underlying library than the one provided by Rogue Wave, and the DBConnection, DBRead, DBUpdate and DBExecute functionality reinstated.
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