SQL Server 学习笔记④ 查询某个数据所在数据库表中的哪个字段上出现过的存储过程

--2005查找某数据库中的列是否存在某个值
create proc spFind_Column_In_DB
(
@type int,--类型：1为文字类型、2为数值类型
@str nvarchar(100)--需要搜索的名字
)
as
--创建临时表存放结果
create table #tbl(PK int identity primary key ,tbl sysname,col sysname)
declare @tbl nvarchar(300),@col sysname,@sql nvarchar(1000)
if @type=1 
begin
declare curTable cursor fast_forward
for 
select '['+SCHEMA_NAME(SCHEMA_ID)+'].['+o.name+']' tableName,'['+c.name+']' columnName from sys.columns c inner join sys.objects o on c.object_id=o.object_id
where o.type_desc='user_table' and user_type_id in (167,175,231,239,35,99)
 end
else
begin 
declare curTable cursor fast_forward
for 
select '['+SCHEMA_NAME(SCHEMA_ID)+'].['+o.name+']' tableName,'['+c.name+']' columnName from sys.columns c inner join sys.objects o on c.object_id=o.object_id
where o.type_desc='user_table' and user_type_id in (56,48,52,59,60,62,106,108,122)
end
open curtable
fetch next from curtable into @tbl,@col
while @@FETCH_STATUS=0
begin
set @sql='if exists (select * from '+@tbl+' where '
if @type=1
begin
set @sql =@sql + @col + ' like ''%'+@str +'%'')'
end
else 
begin
set @sql =@sql +@col + ' in ('+@str+'))'
end

set @sql = @sql +' INSERT #TBL(tbl,col) VALUES('''+@tbl+''','''+@col+''')'
--print @sql
exec (@sql)
fetch next from curtable into @tbl,@col
end
close curtable 
deallocate curtable
select * from #tbl

--使用例子，查询库中存在aaa这个值的列：
--exec  spFind_Column_In_DB  1,'aaa'

由于使用了游标，使得查询速度非常之慢~所以不是万不得已，尽量不要使用！