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;
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...
select count(id),字段from 表名 group by字段 having count(字段)>1;...
SELECT CURDATE()当天日期...
SELECT * FROM shop_count WHERE DATE(count_date)=current_date(); SELECT * FROM sho...
mysql> select CONCAT('My', 'S', 'QL');...
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:...