Kumanan,
Use the NOVALIDATE option:
ALTER TABLE KB.table
ADD CONSTRAINT CHECK_DATES
CHECK (ENDTIME >= STARTTIME AND STOPTIME >= NENDTIME)
NOVALIDATE;
A snippet from one of the manuals:
"Placing a constraint in the enabled novalidated state signifies that any
new data entered into the table must conform to the constraint. Existing
data is not checked."
Regards,
Larry G. Elkins
[EMAIL PROTECTED]
214.954.1781
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Kumanan
> Balasundaram
> Sent: Thursday, August 16, 2001 7:32 AM
> To: Multiple recipients of list ORACLE-L
> Subject: Deferred constraints (?)
>
>
> Do we have the concept of deferred CHECK constraints?
>
> For a constraint of this nature, I don't Oracle to check the
> whole table as
> I
> have done the fixes to ensure there is no occurrence of invalid
> condition.
>
> I only want the future ones to be checked.
>
> ALTER TABLE KB.table
> ADD CONSTRAINT CHECK_DATES
> CHECK (ENDTIME >= STARTTIME AND STOPTIME >= NENDTIME);
>
> Thanks
> Kumanan
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Author: Larry Elkins
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