Comments on: MySQL: Insert if doesn’t exist otherwise update the existing row

By: peace

peace — Fri, 19 Aug 2011 08:07:14 +0000

Thanks you so much. That’s work great. Wonderful post and explanation.

By: gustavo

gustavo — Wed, 04 May 2011 15:35:28 +0000

nice way to do it, but it doesn’t work when the id is present as a foreing key in another table. There’s an error of restriction or even worst, a cascade elimination of registers in the foreing table. Take care of this point before try this command. Bye!

By: kriss

kriss — Tue, 03 May 2011 20:00:03 +0000

Thank you!

By: MySQL: Update Multiple Rows or Records with One Single Query

MySQL: Update Multiple Rows or Records with One Single Query — Thu, 17 Mar 2011 01:30:42 +0000

[...] There’s also another way of doing this: http://www.kavoir.com/2009/05/mysql-insert-if-doesnt-exist-otherwise-update-the-existing-row.html [...]

By: Rory P

Rory P — Fri, 10 Sep 2010 18:26:48 +0000

Bingo bango! Thanks..

By: James Waples

James Waples — Thu, 02 Sep 2010 10:34:45 +0000

X2 – the MySQL documentation gets quite confusing sometimes

By: What Is My IP Address

What Is My IP Address — Fri, 13 Aug 2010 15:19:26 +0000

Thank you so much .. you really saved my day since I was trying to avoid using SELECT, IF, UPDATE, INSERT query.

Thanks again!

By: To Jon

To Jon — Mon, 05 Apr 2010 20:31:31 +0000

Jo, you can create one more filed, with a md5key with the date and the ip.

example on php:
$ip = $_SERVER['remote_addr'];
$today = date(“Y-m-d”);
$key = md5($ip.”:”.$today);

and the example:
REPLACE INTO table SET md5key= $key, foo = ‘bar’;

INSERT INTO table (a, b, c) VALUES ($key, 2, 3) ON DUPLICATE KEY UPDATE c = c + 1;

By: Valter Henrique

Valter Henrique — Tue, 09 Mar 2010 12:46:14 +0000

Thx dude, awesome, it really help me.

By: Jon

Jon — Mon, 21 Sep 2009 04:57:13 +0000

how can I check for more than one field?

I would link to insert the field in case that 3 of its columns don’t exist.

INSERT INTO TABLE (id,ip,date,rate) VALUES (NULL,’111.333.222.444′,now(),’3′)

However, I’m checking not only for the Primary Key (which is an auto-increment anyways), but for fields ‘ip’ and ‘date’.

I need for an IP to be able to rate once per day.

Thanks!

By: LED TV Tom

LED TV Tom — Thu, 03 Sep 2009 11:02:21 +0000

Cheers for the article. Always find the MySQL official documentation a bit heavy to read and understand. Could understand this though :)

By: Paul

Paul — Tue, 04 Aug 2009 17:27:09 +0000

Thanks for the article. It was exactly what I was looking for. You saved me a lot of time. I hope I can return the favor back to the community of developers soon. : )