mysql函数实例-统计日新增用户_MySQL

mysql函数实例-统计日新增用户

Sql代码  CREATE FUNCTION `statics_user_new`() RETURNS int(11)      COMMENT '统计新增用户'  BEGIN      #Routine body goes here...        DECLARE stopFlag INT DEFAULT 0 ;      DECLARE _shop_id VARCHAR(11) DEFAULT NULL;  #餐厅id      DECLARE _device VARCHAR(50) DEFAULT NULL;   #手机设备号      DECLARE _a_token CHAR(64) DEFAULT NULL;     #与苹果服务器会话      DECLARE _s_token VARCHAR(64) DEFAULT NULL;  #与点菜网服务器会话      DECLARE _counts INT DEFAULT 0;            #查询昨天新创建的用户      DECLARE cur1 CURSOR FOR SELECT id, device, a_token, s_token FROM visitor_user           where DATE_FORMAT(create_time, '%Y-%m-%d') = DATE_SUB(DATE_FORMAT(now(),'%Y-%m-%d'), INTERVAL 1 DAY);      DECLARE CONTINUE HANDLER FOR NOT FOUND SET stopFlag=1;            OPEN cur1;                FETCH cur1 INTO _shop_id, _device, _a_token, _s_token;      WHILE  stopFlag = 0 do          INSERT INTO report_user_new_day_detail(id, shop_id, device, a_token, s_token)               values (UUID(), _shop_id, _device, _a_token, _s_token);            FETCH cur1 INTO _shop_id, _device, _a_token, _s_token;      END WHILE;            CLOSE cur1;        #统计日新增用户数      SELECT COUNT(device) INTO _counts FROM visitor_user           where DATE_FORMAT(create_time, '%Y-%m-%d') = DATE_SUB(DATE_FORMAT(now(),'%Y-%m-%d'), INTERVAL 1 DAY);            INSERT INTO report_user_new_day(id, day_time, new_counts, type_client)           VALUES(UUID(), DATE_SUB(DATE_FORMAT(now(),'%Y-%m-%d'), INTERVAL 1 DAY), _counts, 0);            SET _counts = 1;      RETURN _counts;    END