MySQL group_concat_max_len in a query

Question

I\'m searching a way to insert this

SET GLOBAL group_concat_max_len=15000

in an existing SQL query such as the following:

SELECT *         


        

Answer 1

The maximum allowed result length in bytes for the GROUP_CONCAT() function. The default is 1024. mysql> show variables like 'group%';

You change the value of group_concat_max_len. Either in your config file or setting the session variable, e.g. "SET @@group_concat_max_len = 2048;'