Re: FOREIGN CONSTRAINT RESTRICT UNIQUE WAS EXPECTED

Dave,

If, for example, the column you are trying to drop is part of a constraint,
the rules that the constraint enforces wouldn't be valid anymore.
Did you check your job log for any additional messages?

Regards,
Luis

Sent from my Nexus 7 tablet. Please excuse my brevity.
On Jun 27, 2014 2:52 PM, "Dave" <dfx1@xxxxxxxxxxxxxx> wrote:

Thanks Luis,

I didn't expect the column I added to end up as part of any constraint.
I'll have to look closer on Monday, thanks. If I removed a constraint,
dropped the column and put back the constraint are there risks? I'm on a
test machine.


2014-06-27 19:48 GMT+02:00 Luis Rodriguez <luisro58@xxxxxxxxx>:

Dave,

Is it possible that the column you are trying to drop is part a of unique
constraint? If so, maybe you have to delete the constraint first before
dropping the column. Proceed with caution, though...

Regards,
Luis

Luis Rodriguez
IBM Certified Systems Expert — eServer i5 iSeries
--



On Fri, Jun 27, 2014 at 12:01 PM, Dave <dfx1@xxxxxxxxxxxxxx> wrote:

Hi,

I'm trying to remove a table column that I just added with the the

ALTER

TABLE ADD command. When I try ALTER TABLE MYTABLE DROP COLUMNN

MYCOLUMN,

I

get the above error message, even if I add RESTICT UNIQUE. Is there

some

kind of constraint that needs to be taken off first?
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