SQL ROW_NUMBER gives error
Solution 1
The function ROW_NUMBER() does not exist in MySQL.
However, you can replicate it, possibly: http://www.mysqltutorial.org/mysql-row_number/
The row_number is a ranking function that returns a sequential number of a row, starting from 1 for the first row. We often want to use the row_number function to produce the specific reports we need. Unfortunately, MySQL does not provide row_number like Microsoft SQL Server and Oracle. However, in MySQL, you can use session variables to emulate the row_number function.
example:
SET @row_number = 0;
SELECT
(@row_number:=@row_number + 1) AS num, firstName, lastName
FROM
employees
LIMIT 5;
Solution 2
There are no such things as ROW_NUMBER()
or RANK()
in MySQL. Try the following :
USE my_database;
SET @row_number = 0;
SELECT id
, volume
, @row_number := @row_number + 1 AS rank
FROM my_table
ORDER BY volume;
anvandarnamn
Updated on June 12, 2022Comments
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anvandarnamn almost 2 years
I need to order rows in MySQL and assign a number to each row according to that order.
ORDER BY
is working as intended but notROW_NUMBER()
.This works:
USE my_database; SELECT id ,volume FROM my_table ORDER BY volume;
This does not work:
USE my_database; SELECT id ,volume ,ROW_NUMBER() over(ORDER BY volume) FROM my_table ORDER BY volume;
I get this error message:
SELECT id ,volume ,ROW_NUMBER() over(ORDER BY volume) FROM my_table ORDER BY volume Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(ORDER BY volume) FROM my_table ORDER BY vol' at line 4 0.000 sec
What am I doing wrong and how do I make it work?
I also tried
RANK()
andDENSE_RANK()
which gives the same problem. -
anvandarnamn over 9 yearsThis didn't work but it was close to the solution: SET @row_number = 0; SELECT (@row_number:=@row_number + 1) AS rank, id, volume . Thanks!
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anvandarnamn over 9 yearsThank you! The solution was SET @row_number = 0; SELECT (@row_number:=@row_number + 1) AS rank, id, volume .
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Eric Korolev about 5 yearsYou have an error in variable name. Use row_number and then use rownumber without underscore.
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Michael almost 2 yearsHello from the future. There IS such a thing a ROW_NUMBER starting in MySQL 8 and I'm on MySQL 14, but I still get the same error!