i need the MySQL query for calculate the number the rows that have a same value in a one or more cells:
See my example:
-----------------------------------------# | user_ip | user_useragent | user_lang-----------------------------------------1 | 55.12.15 | Firefox | en2 | 55.12.11 | Firefox | en3 | 55.12.15 | IE | en4 | 55.12.15 | Opera | en5 | 55.12.15 | Firefox | de6 | 55.12.15 | IE | en7 | 55.12.81 | Firefox | en-----------------------------------------
Request : That calculate number of rows that have a same value in the user_lang
and user_useragent
:
The rows 1, 2, 7 have same value in user_lang
and user_useragent
. >> 3 row
Also the rows 3 and 6 have same value in user_lang
and user_useragent
. >> 2 row
The result must be 5.
Did you understand? I want the SQL comment to process for getting number 5.
I can use the array_unique in PHP for calculate but i want process it with MySQL functions.
thanks and be waiting.