v 6.0.1
if there is in-line comment present after ";", then command is not executed.
Same for multiline statements
Code:
SQL> alter table TASK add (STATUS NUMBER); -- line comment
2
SQL> alter table TASK add (STATUS NUMBER);
Table altered
Same for multiline statements
Code:
SQL> -- Create/Recreate primary, unique and foreign key constraints
SQL> alter table TASK
2 add constraint fk$task$user_type foreign key (TASK_OWNER)
3 references user_type (USER_TYPE)
4 ; -- Test comment
5