order by sort!=0 desc, sort asc

update `table_name` set filed_name = REPLACE(filed_name […]

select a.* from a left join  b on a.id=b.id where b.id […]

update talbe set content = replace(content,’http: […]

1. 连接数据库：$link = mysql_connect(“localhost”, […]

select * from A where CONCAT(‘,’,rid,&#8217 […]

先把sql数据库导入本地数据库，再导到网上数据库

update talbe set column = replace(column,’aa&#821 […]

header(“Content-type:text/html;charset=utf-8”); mysql_c […]

select A.* from 表名1 A left join 表名2 B on A.id=B.id wher […]