Actually this is generating another error. Now, without the single
quotes I am getting the following error:
Column 'StartDate' cannot be null
It looks like for some reason the DATE_ADD is returning a NULL
value. Any more ideas?
-----Original Message-----
From: 1LT John W. Holmes [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 15, 2003 10:32 AM
To: 1LT John W. Holmes; NIPP, SCOTT V (SBCSI); [EMAIL PROTECTED]
Subject: Re: [PHP-DB] Date math functions...
> [snip]
> > if ($dateDiff == 3) {
> > mysql("$DBName","UPDATE Balances SET CompEarned=CompTaken+8 WHERE
> > said='$said'") or die(mysql_error());
> > mysql("$DBName","INSERT INTO Log VALUES('DATE_ADD($StopDate,
> > INTERVAL 1 DAY','',1,2,'$CalendarDetailsID')") or die(mysql_error());
> >
> > My big question is about using the "DATE_ADD" MySQL function inside
> > the INSERT statement. Is this allowed? If it is allowed, is it a bad
> idea
> > for some reason? Is there a better way of doing this? Thanks in
advance.
>
> Sure, that's allowed. You have $StopDate in PHP, so you could do it with
> some math in PHP, also, but then you'd have to worry about the end of
> months, years, etc, whereas DATE_ADD will do this for you.
>
> ---John Holmes...
Wait... just noticed your syntax error. Don't enclose the function in single
quotes, otherwise you're trying to insert a string.
Should be:
... VALUES (DATE_ADD($StopDate,INTERVAL 1 DAY), ...
---John Holmes...
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