mysql存储过程双重循环示例

BEGIN
DECLARE menu_id VARCHAR(36);
DECLARE done INT DEFAULT FALSE;
DECLARE cursor_rule CURSOR FOR SELECT s.id FROM d_menu_type s ;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
OPEN cursor_rule;
l : LOOP
FETCH cursor_rule INTO menu_id;
IF done THEN
LEAVE l;
END IF;
BEGIN
DECLARE property_id VARCHAR(36);
DECLARE done2 INT DEFAULT FALSE;
DECLARE cursor_rule2 CURSOR FOR SELECT property_id FROM d_menu_property l WHERE l.menu_id=menu_id;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done2 = TRUE;
OPEN cursor_rule2;
l2 : LOOP
FETCH cursor_rule2 INTO property_id;
IF done2 THEN
LEAVE l2;
END IF; END LOOP;
CLOSE cursor_rule2;
END;
END LOOP;
CLOSE cursor_rule;
END
上一篇:ubuntu 13.10 amd64安装ia32-libs


下一篇:【支付专区】之微信支付构建请求参数xml