sql 全站搜索

SQL全站搜索

create proc
Full_Search(@string varchar(50))
as
begin

declare @tbname
varchar(50)
declare tbroy cursor for select name from sysobjects
where
xtype= 'u ' --第一个游标遍历所有的表

open tbroy
fetch next from tbroy into
@tbname
while @@fetch_status=0
begin

declare @colname
varchar(50)
declare colroy cursor for select name from syscolumns
where
id=object_id(@tbname) and xtype in (
select xtype from systypes
where
name in ( 'varchar ', 'nvarchar ', 'char ', 'nchar ') --数据类型为字符型的字段
)
--第二个游标是第一个游标的嵌套游标，遍历某个表的所有字段

open colroy
fetch next from colroy
into @colname
while @@fetch_status=0
begin

declare @sql
nvarchar(1000),@j int
select @sql= 'select @i=count(1) from ' +@tbname + '
where '+ @colname+ ' like '+ '''%'+@string+ '%'''
exec sp_executesql
@sql,N'@i int output',@i=@j output --输出满足条件表的记录数
if @j> 0
BEGIN

select 包含字串的表名=@tbname
--exec( 'select distinct '+@colname+' from '
+@tbname + ' where '+ @colname+ ' like '+ '''%'+@string+ '%''')
END

fetch next from colroy into @colname
end

close colroy

deallocate colroy

fetch next from tbroy into @tbname
end

close tbroy
deallocate tbroy
end
go

exec Full_Search
'搜索关键字'