select count(cpostal) from fiche_personne WHERE cpostal LEFT(cpostal, 2) = 94; Ресурс: https://www.w3schools.com/sql/func_mysql_count.asp
select count(cpostal) from fiche_personne WHERE cpostal LEFT(cpostal, 2) = 94;
Ресурс: https://www.w3schools.com/sql/func_mysql_count.asp