Comments on: Displaying row number (rownum) in MySQL

By: Srinivasan KP

Srinivasan KP — Sat, 19 May 2012 00:40:36 +0000

Hi,
Thanks for this piece of code. it works just fine.
However, my other requirement is to rank within a group.
For example, I have data as follows

Model Color Sales
Mazda Black 15
Mazda Red 25
Mazda White 35
Honda Black 22
Honda Red 18
Honda White 43

How Can I rank within the Model? So for Mazda i need to show 1,2and 3 and same for Honda as well

By: Mike

Mike — Mon, 07 May 2012 20:56:33 +0000

Why can I not select a single record with:

(SELECT @row_number:=0); SELECT row_number FROM (SELECT userid,@row_number:=@row_number+1 AS row_number FROM users ORDER BY `characters` asc) sub1 WHERE userid = 1

What am I doing wrong?

By: Ardha Gp

Ardha Gp — Thu, 26 Apr 2012 15:38:24 +0000

It works, thanks…

By: Naim

Naim — Thu, 19 Apr 2012 00:03:32 +0000

@CV: I am not sure what you meant by stored procedure, but if you were talking about inner queries (sub-queries), then it does work, as it is my case.
I have 2 sub-queries and both are using order by. I have just put a 3rd query on top of them with @rownum and it worked. Cheers.

By: CV

CV — Sat, 25 Feb 2012 21:25:20 +0000

Thank you, it saved me a lot of time. But you can mention that when you use stored procedure with order by, it doesn´t work properly.

By: Membuat No di Hasil Query Mysql « Pengingat

Membuat No di Hasil Query Mysql « Pengingat — Thu, 23 Feb 2012 17:35:19 +0000

[...] link dari situs ini dan ini cara membuat no pada hasil query [...]

By: Ashok sharma

Ashok sharma — Wed, 11 Jan 2012 13:22:20 +0000

I want to display a table of various datas including a column of s.no. which should be continuous even if removed any data from the table.
Can you please tell me or this code will work for that?

By: Code Example

Code Example — Sat, 24 Dec 2011 08:47:29 +0000

Smart solution!! Thanks Jim.

When I delete a row from a table then auto increment just missed the identity numbers. but this example save lots of time.

Your reply with the Tom’s message also very helpful.

go ahead..

By: Ed F

Ed F — Sat, 24 Dec 2011 02:29:41 +0000

@Jimmy – I was excited to find this solution while trying to convert a MSSQL query using row_number() to MYSQL. Your solution did not work at first because my query uses INNER JOINS, but your response to Jim Zak on Mar 2,’10 supplied the answer. I have no idea why it works, but it does. Guess it’s time to do some research.

THANKS – You have been a BIG help!

By: jimmy

jimmy — Fri, 14 Oct 2011 17:12:10 +0000

@Annete: do you mean crystal report?
I’m not really familiar with crystal report, if you can explain the error message in more detail maybe I can give you a hint