[Jaymzanator]

guys - even faster:

Код:

SELECT HIGH_PRIORITY COUNT(`idbusiness`) FROM `business` WHERE x=? AND y=?

Код:

if (!bcCount) { 
//row doesnt exist with x=? and y=?
//insert row 

 }

ps. high_priority can increase accuracy of count on very busy mysql servers. otherwise you probably wont need it