SQL2008和2005多數(shù)據(jù)庫操作，還是有一定的區(qū)別，采用這個(gè)方法是最好的，以下提供兩種方法

set nocount off
declare @DBName as varchar(255)
Create table #temp(Faccount varchar(255),FDate varchar(255),FDescription varchar(255))
declare cs_DBName cursor for select name from sysdatabases where name like '%sy%' order by name
open cs_DBName
fetch next from cs_DBName into @DBName
while @@fetch_Status =0
begin
exec('DELETE FROM '+@DBName+'.dbo.t_UserProfile' )
--select * from @DBName.dbo.t_log where substring(convert(varchar(108),fDATE,120),1,16)=@datetime
--
-- SELECT * FROM #temp drop table #temp
fetch next from cs_DBName into @DBName
end
close cs_DBName
DEALLOCATE cs_DBName

-----------------------------------------------------------------------------------

set nocount off
declare @datetime as varchar(255)
set @datetime='''2011-07-27 10:58'''
declare @DBName as varchar(255)
Create table #temp(Faccount varchar(255),FDate varchar(255),FDescription varchar(255))
declare cs_DBName cursor for select name from sysdatabases where name like '%sy%' order by name
open cs_DBName
fetch next from cs_DBName into @DBName
while @@fetch_Status =0
begin
exec('insert into #temp select '''+@DBName+''',fdate,FDescription from '+@DBName + '.dbo.t_log where substring(convert(varchar(108),fDATE,120),1,16)='+@datetime+'')
--select * from @DBName.dbo.t_log where substring(convert(varchar(108),fDATE,120),1,16)=@datetime
--
-- SELECT * FROM #temp drop table #temp
fetch next from cs_DBName into @DBName
end
close cs_DBName
DEALLOCATE cs_DBName
select * from #temp
drop table? #temp

SQL2008多數(shù)據(jù)庫查詢表或刪表