Oracle PLSQL: ORA-00923 Error Message

ora 923ORA-00923 occurs when you try to execute a SELECT or REVOKE statement without a FROM keyword in its correct form and place. If you are seeing this error, the keyword FROM isORA-00923: FROM keyword not found where expected SQL: SELECT DISTINCT B10.EMPLID from PS_BEN_PROG_PARTIC a10, PS_EMPLOYEES b10,