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);...
设置my.cnf : auto-rehashmysql>use mysql; #这是关键...
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:...
SELECT CURDATE()当天日期...
truncate table 表名...
DELETE t1 FROM invest_year t1, invest_year t2 WHERE t1.pro_id = t2.pro_id AND t1.pro_year = t...