MySQL判断字符串是否是数字
SELECT * FROM **** WHERE trim(字段名) REGEXP '[^0-9]'=1
mysql> select CONCAT('My', 'S', 'QL');...
truncate table 表名...
DATE_ADD(now(),INTERVAL 1 DAY);...
SELECT * FROM shop_count WHERE DATE(count_date)=current_date(); SELECT * FROM sho...
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...
mysql -h ***.***.***.*** -P 3306 -u root -pmysqldump -h ***.***.***.*** -P 3...