Database Error Events report function errors such as:
Database selection errors
General database function errors
These events do not require any additional configurations to the database. Production environments can use the information to delineate between a PHP problem and a database problem.
Database Errors can prove to be invaluable to an organization as they provide insight into the Database reliability along with a different perspective on problems (view outside problems through the eyes of PHP). Issues like these used to be difficult to reproduce however with the complete audit trail and full problem context, Database Errors can be easily reproduced to a level of accuracy that mirrors the actual time of occurrence.
Database errors generate events when database-related functions fail. This event is directly associated to the "Function Error" event and is activated and defined in correlation with this event type.
Database functions that should be reported are defined (or deleted) from the "Function Error" functions list.
To view supported databases, see the database related function prefixes listed in 'linux/unix/mac/ i5OS' <install_dir>/lib/db_functions.txt or in windows <install_dir>\lib\db_functions.txt.