mysql游标错误

DECLARE done INTEGER DEFAULT 0;
DECLARE cur CURSOR FOR SELECT f_time,f_value FROM this_yc201508;
DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done=1;

所有的变量都要定在游标之前,Handler要在游标之后。

否则会报错Variable or condition declaration after cursor or handler declaration

调试方法:SELECT输出

SET赋值。