Comments on: ORA-02449 Oracle Drop Table Error

By: Michael Komisarenko

Michael Komisarenko — Tue, 07 Apr 2009 10:56:27 +0000

If you need to recreate a table you do not have to drop constraints. As an alternative you can disable constraints and then enable them back again.
The correct select statement to see which foreign keys reference the primary key of the parent table is as follows:

SELECT TABLE_NAME, CONSTRAINT_NAME
FROM USER_CONSTRAINTS
WHERE CONSTRAINT_TYPE = ‘R’
AND R_CONSTRAINT_NAME = parent_table_primary_key;

You can use EXECUTE IMMEDIATE to disable constraints without necessarily dropping them.

By: sangam

sangam — Thu, 24 Jul 2008 05:21:41 +0000

Great! The information provided is very helpful. It seems to be simple but really halps an lot. Thanks again.

By: f

Wed, 02 Jul 2008 22:30:55 +0000

Constrangimentos? Orra, meu revisa essa tradução aí e testa antes de postar!!! Se não seja honesto e indica o link de onde pegou!!!

By: vipin

vipin — Thu, 08 Feb 2007 10:51:08 +0000

what if after dropping the table using the query blow you want again all those constraints.

DROP TABLE table_name CASCADE CONSTRAINTS;

please tell the query if u knows.