Comments on: Update Multiple Rows With Different Values and a Single SQL Query

By: Jocsism

Jocsism — Mon, 16 Jan 2012 20:43:48 +0000

Good one sir this is what i’m looking for thanks! sir is it possible to use column increments like display_order=display_order+1 based on your example, because in my case im trying to update the quantity of the inventory based on their status. like for example i updated a certain item to status ‘InStock’ i would also like my table inventory column ‘InStock’ value to increment . i would appreciate it very much if you email me regarding this question. thank you.

By: Efficient Update SQL, updating multiple rows with one SQL statement, Avoiding Loops | DIGG LINK

Mon, 09 Jan 2012 11:18:16 +0000

[...] http://www.karlrixon.co.uk/writing/update-multiple-rows-with-different-values-and-a-single-sql-query... [...]

By: Pradeep Kumar Sharma (http://www.techtt.org)

Pradeep Kumar Sharma (http://www.techtt.org) — Fri, 23 Dec 2011 07:26:47 +0000

it should be like

UPDATE empsal SET sal =
CASE WHEN sal BETWEEN 100 AND 500 THEN sal + 5000
WHEN sal BETWEEN 40000 AND 55000 THEN sal + 7000
else sal

END

By: Eilo

Eilo — Wed, 21 Dec 2011 04:05:22 +0000

This was the most amazing tip on sql ever!!

I was able to solve a 2963 + 1520 duplicated rows (from 2 different dbs) with a single query….. obviously i made a table_copy and use the same method to achieve the goal.

UPDATE characters AS t, (SELECT `guid`,`name` FROM `characters_copy` GROUP BY `name` HAVING COUNT(`name`)=2) AS n SET t.`name`=CONCAT(t.`name`,’aaa’) WHERE t.guid=n.guid;

Thank you so much!

By: premkumar

premkumar — Fri, 09 Dec 2011 15:41:28 +0000

thank you its very useful for me and my friends

By: rajnikant

rajnikant — Fri, 09 Dec 2011 11:34:35 +0000

Thank you..!

By: Habib

Habib — Tue, 06 Dec 2011 09:29:44 +0000

Good……….. Thanks a lot.

By: Update Multiple Rows with Unique Values – MySQL « Intellega Tech Blog

Update Multiple Rows with Unique Values – MySQL « Intellega Tech Blog — Tue, 15 Nov 2011 23:40:46 +0000

[...] http://www.karlrixon.co.uk/articles/sql/update-multiple-rows-with-different-values-and-a-single-sql-... [...]

By: jermaine

jermaine — Sat, 05 Nov 2011 07:30:40 +0000

am kinda a newbie to php and mysql…
how would u update multi rows tht has more than one field

By: nvamsk

nvamsk — Tue, 01 Nov 2011 17:35:12 +0000

Hi Karl

I want to update following

col1 col2 col3
1 abc
2 abc
3 pqr

col1 col2 col3
1 abc 1
2 abc 1
3 pqr 3

plzz help