SQL語句,在數據庫的所有表里查找某一個字段值


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

declare @tbname varchar(50)
declare tbroy cursor for select name from sysobjects
where xtype= 'u ' --第一個游標遍歷所有的表

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 ') --數據類型為字符型的字段
) --第二個游標是第一個游標的嵌套游標,遍歷某個表的所有字段

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 --輸出滿足條件表的記錄數
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

 比如查的“首頁列表”方法:

exec Full_Search '首頁列表'


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