Which statement describes the effect of table redefinition on the triggers attached to the table?
A. All triggers on the table remain valid.
B. All triggers on the table are invalidated and are automatically revalidated with the next DML execution on
the table.
C. All triggers on the table are invalidated and must be manually recompiled before the next DML execution
on the table.
D. Only triggers that are affected by the changes to the structure of the table are invalidated and
automatically revalidated with the next DML execution on the table.
Answer: B
comment:
Dependent views, triggers, functions, procedures, and packages are invalidated. Oracle Database attempts to revalidate them when they are next accessed, but you may need to alter these objects with the new column name if revalidation fails.
reference link:
http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_3001.htm#SQLRF01001
