On 28-Jul-2001 Philip Mak wrote:
> I have a table called "stats" with:
> user varchar(40) not null primary key,
> count mediumint not null.
>
> I want to do something like this:
>
> UPDATE stats SET count=count+1 WHERE user='$user';
>
> But if there is no row in the "stats" table having user='$user', that
> statement will not create the row.
>
<snip>
>
> The following will raise an error if the user already exists, causing the
> program to stop:
>
> INSERT INTO stats SET user='$user', count=0;
> UPDATE stats SET count=count+1 WHERE user='$user';
>
You're on the right track:
INSERT IGNORE INTO stats (user,count) values('$user',0);
UPDATE stats SET count=count+1 WHERE user='$user';
But for something less intensive:
UPDATE stats SET count=count+1 WHERE user='$user'
if (0 == $sth->affectedrows) {
INSERT INTO stats (user,count) values('$user',1)
}
Regards,
--
Don Read [EMAIL PROTECTED]
-- It's always darkest before the dawn. So if you are going to
steal the neighbor's newspaper, that's the time to do it.
(53kr33t w0rdz: sql table query)
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