RE: Drop 'NOT NULL' Constraint

I think that if there is already data in the column you will not be able to do that.

-----Original Message-----
Sent: Wednesday, May 23, 2001 5:15 PM
To: Multiple recipients of list ORACLE-L

I created a table with a 'NOT NULL' constraint on a VARCHAR2 column. I would like to remove the NOT NULL constraint. I've tried a couple of 'ALTER TABLE' commands but no luck.

How does one do this?

Also:

How does one figure out which generated constraints (from user_constraints) do what?

Chris Rezek
Database Administrator
DotClick
http://www.dotclick.com

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Author: Chris Rezek
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