查询重复数据mysql

admin3年前 (2022-12-14)mysql743

select count(id),字段from 表名 group by字段 having count(字段)>1;

返回列表

1.date型转换成int型 UNIX_TIMESTAMP('2007-10-04 22:23:00') 2.int型转换成date型 FROM_UNIXTIME(97599...

DELETE t1 FROM invest_year t1, invest_year t2 WHERE t1.pro_id = t2.pro_id AND t1.pro_year = t...

truncate table 表名...

update 表名 SET log_Content = REPLACE(log_Content,'"upload','"/upload')...

SELECT product_brand FROM shop_product WHERE LENGTH(product_brand)>...

DATE_ADD(now(),INTERVAL 1 DAY);...

汇成软件