ORA-01814

Error: ORA-01814: AM/PM conflicts with use of A.M./P.M.

Causa: Both types of meridian indicators, AM and PM, were listed in a date specification. If one of the meridian indicator format masks, such as AM or A.M., is specified in the date, the other may not be specified.

Acción: Use one meridian indicator format, with or without periods, consistently.