Re: A problem about alter table

--- jack <datactrl(at)tpg(dot)com(dot)au> wrote:
> Hi, all
> I'm using postgreSQL 7.2.3. The following statement
> always cuases a parser
> error, "parse error at or near NOT". Please adivse,
> thank you in advance.
>
> ALTER TABLE _acct_group1
> ALTER groupkey SET NOT NULL;

I believe you will need to use:

ALTER TABLE _acct_group1 ADD CONSTRAINT <constraint
name> CHECK groupkey NOT NULL;

I haven't checked that syntax for correctness, but
it's covered in the docs on ALTER TABLE.

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