mysql函數實例-統計日新增用戶

mysql函數實例-統計日新增用戶  

Sql代碼  
CREATE FUNCTION `statics_user_new`() RETURNS int(11)  
    COMMENT '統計新增用戶'  
BEGIN  
    #Routine body goes here...    
    DECLARE stopFlag INT DEFAULT 0 ;  
    DECLARE _shop_id VARCHAR(11) DEFAULT NULL;  #餐廳id  
    DECLARE _device VARCHAR(50) DEFAULT NULL;   #手機設備號  
    DECLARE _a_token CHAR(64) DEFAULT NULL;     #與蘋果服務器會話  
    DECLARE _s_token VARCHAR(64) DEFAULT NULL;  #與點菜網服務器會話  
    DECLARE _counts INT DEFAULT 0;  
      
    #查詢昨天新創建的用戶  
    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;  
  
    #統計日新增用戶數  
    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