With Oracle db the limit of user operation log's annotation in the webapps (4000) is too much

In Oracle db, the maximum number of characters to store is restricted to 2000.

When a user with setup Oracle db tries to enter 2000+ characters in the annotation of user operation log in the webapps, they will receive an exception:

ORA-01401: inserted value too large for column

The limit in the webapps is 4000 which works fine for the other databases.