Re: MySQL Increment/Decrement
| From: | muzy | Date: | Tue, 29 Dec 2009 08:10:34 +0000 |
| Subject: | Re: MySQL Increment/Decrement | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-300724@lists.php.net to get a copy of this message | ||
Hello Ben,
I had the same question yesterday (but with SQLite) and there are at least 2 solutions.
The first was already mentioned:
UPDATE table SET value = value + 1 WHERE foo = bar;
The second solution which also works is:
UPDATE table SET value = (SELECT value FROM table WHERE foo = bar) + 1 WHERE foo = bar;
I hope it helps.
Greetings from Germany,
Sebastian
Ben Miller wrote:
I hope this isn't a bone-head question - Is there a MySQL query that will increment/decrement the value in an integer column with a single query - in other words, I don't have to run a SELECT query to get the value, add/subtract to/from the value, and then run an UPDATE query to store the new value? Thanks in advance. Ben