统计mysql字段值的长度
SELECT product_brand FROM shop_product WHERE LENGTH(product_brand)>3;
SELECT product_brand FROM shop_product WHERE LENGTH(product_brand)>3;
DATE_ADD(now(),INTERVAL 1 DAY);...
truncate table 表名...
select count(id),字段from 表名 group by字段 having count(字段)>1;...
mysql> select CONCAT('My', 'S', 'QL');...
update 表名 SET log_Content = REPLACE(log_Content,'"upload','"/upload')...
让时间加一天,以及转换时间到INT数字格式UPDATE zbp_postSET log_CreateTime = UNIX_TIMESTAMP(DATE_ADD('2020-07-14 09:...