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ORA-02449: unique/primary keys in table referenced by foreign keys



SQL> select name from v$database;

NAME
---------
UHTG1P

SQL> drop tablespace TEST including contents and datafiles;
drop tablespace TEST including contents and datafiles
*
ERROR at line 1:
ORA-02449: unique/primary keys in table referenced by foreign keys

SOLUTION 1:

SQL> drop tablespace TEST including contents and datafiles cascade constraints;

Tablespace dropped.


NOTE: The CASCADE CONSTRAINTS clause drops all referential integrity constraints that refer to the primary and unique keys defined on the dropped columns.


SOLUTION 2:

Other way we can drop the user first and then the tablespace. No need to specify cascade option here.


Thank You!

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