--1.select语句 select * from openquery(sqllink, 'select * from hhp_user where chrusername = ''hhp'''); --或 select * from openquery(sqllink, 'select * from hhp_user') where chrusername = @username --2.insert语句，into可省略 insert into openquery(sqllink,'select chrusername,chrpwd from hhp_user where1=0') values( @username , @pwdmd5) --3.update语句 set @pwd = 'hhp' set @pwdmd5 = substring(sys.fn_sqlvarbasetostr(hashbytes('md5', @pwd)),3,32) update openquery(sqllink, 'select chrusername, chrpwd from hhp_user where chrusername = ''hhp''') set chrpwd = @pwdmd5 --4.delete语句，from可省略 delete from openquery(sqllink, 'select * from hhp_user where chrusername = ''hhp''') --或 set @username = 'ls' delete from openquery(sqllink, 'select * from hhp_user') where chrusername = @username