查询重复数据mysql
select count(id),字段from 表名 group by字段 having count(字段)>1;
update 表名 SET log_Content = REPLACE(log_Content,'"upload','"/upload')...
DATE_ADD(now(),INTERVAL 1 DAY);...
SELECT CURDATE()当天日期...
SELECT * FROM shop_count WHERE DATE(count_date)=current_date(); SELECT * FROM sho...
判断字符串(string)中是否包含另一个字符串(subStr)locate(subStr,string) :函数返回subStr在string中出现的位置实际运用SELECT LOCAT...
truncate table 表名...