System triggers should not reference a column in a WHEN clause
ORA-30504 – Oracle Error Code
System triggers cannot have a FOR EACH ROW clause
ORA-30503 – Oracle Error Code
System triggers cannot have a REFERENCING clause
ORA-30502 – Oracle Error Code
System triggers cannot have INSERT- UPDATE- or DELETE as triggering events
ORA-30501 – Oracle Error Code
Instance shutdown triggers cannot have AFTER type
ORA-30500 – Oracle Error Code
Database open triggers and server error triggers cannot have BEFORE type
ORA-30493 – Oracle Error Code
The percentile value should be a number between 0 and 1.
ORA-30490 – Oracle Error Code
Ambiguous expression in GROUP BY ROLLUP or CUBE list
ORA-30489 – Oracle Error Code
Cannot have more than one rollup/cube expression list
ORA-30479 – Oracle Error Code
Summary Advisor errorstring