See my example:
Code: Select all
-----------------------------------------
# | user_ip | user_useragent | user_lang
-----------------------------------------
1 | 55.12.15 | Firefox | en
2 | 55.12.11 | Firefox | en
3 | 55.12.15 | IE | en
4 | 55.12.15 | Opera | en
5 | 55.12.15 | Firefox | de
6 | 55.12.15 | IE | en
7 | 55.12.81 | Firefox | en
-----------------------------------------
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.