user variables user variables this manual page about user defined variables User-Defined Variables in MySQL User-defined Variable msyql User-Defined Variables msyql User-Defined Variables la documentation User-Defined Variables User-Defined Variables in MySQL ç»è msyql User-Defined Variables SET statement msyql User-Defined Variables User-Defined Variables in MySQL User Variables user-defined variables User-defined Variable ç»è user variables ç»è [refer] ç»è User-Defined Variables in MySQL ç»è User Variables User-Defined Variables in MySQL msyql User-Defined Variables