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sql+ alter table constraint syntax [message #889]

Mon, 11 March 2002 06:57

Misty
Messages: 2
Registered: March 2002

Junior Member

I'd like to add a NOT NULL constraint to a column called DESCRIPTION to an existing table called PART. The table is already populated and I'd rather not delete/insert.

Need some help with my syntax:

ALTER TABLE part ALTER COLUMN description
ADD CONSTRAINT not_null not null;

Receive the following: ERROR at line 1:
ORA-01735: invalid ALTER TABLE option

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Re: sql+ alter table constraint syntax [message #891 is a reply to message #889]

Mon, 11 March 2002 07:14

pratap kumar tripathy
Messages: 660
Registered: January 2002

Senior Member

alter table part modify(description VARCHAR2(100) not null)

assuming description is VARCHAR2(100)

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