搜索指定的数据在哪个对象中存在

CREATE PROC sp_ValueSearch
@value sql_variant, --要搜索的数据
@precision bit=1 --1=仅根据sql_variant中的数据类型查找对应类型的数据列.<>1,查询兼容的所有列,字符数据使用like匹配
AS
SET NOCOUNT ON
IF @value IS NULL RETURN

--数据类型处理
SELECT xtype INTO #t FROM systypes
WHERE name=SQL_VARIANT_PROPERTY(@value,N'BaseType')

--扩展数据类型及查询处理语句
DECLARE @sql nvarchar(4000),@sql1 nvarchar(4000)
IF @precision=1
SET @sql=CASE SQL_VARIANT_PROPERTY(@value,N'BaseType')
WHEN N'text' THEN N' LIKE N''%''+CAST(@value as varchar(8000))+''%'''
WHEN N'ntext' THEN N' LIKE ''%''+CAST(@value as nvarchar(4000))+''%'''
ELSE N'=@value' END
ELSE
BEGIN
SET @sql=CAST(SQL_VARIANT_PROPERTY(@value,N'BaseType') as sysname)
IF @sql LIKE N'%char' or @sql LIKE N'%text'
BEGIN
INSERT #t SELECT xtype FROM systypes
WHERE name LIKE N'%char' or name LIKE N'%text'
SELECT @sql=N' LIKE N''%''+CAST(@value as '
+CASE
WHEN LEFT(@sql,1)=N'n' THEN ' nvarchar(4000)'
ELSE 'varchar(8000)' END
+N')+N''%'''
END
ELSE IF @sql LIKE N'%datetime'
BEGIN
INSERT #t SELECT xtype FROM systypes
WHERE name LIKE N'%datetime'
SET @sql=N'=@value'
END
ELSE IF @sql LIKE N'%int'
OR @sql LIKE N'%money'
OR @sql IN(N'real',N'float',N'decimal',N'numeric')
BEGIN
INSERT #t SELECT xtype FROM systypes
WHERE name LIKE N'%int'
OR name LIKE N'%money'
OR name IN(N'real',N'float',N'decimal')
SET @sql=N'=@value'
END
ELSE
SET @sql=N'=@value'
END
--保存结果的临时表
CREATE TABLE #(TableName sysname,FieldName sysname,Type sysname,SQL nvarchar(4000))

DECLARE tb CURSOR LOCAL
FOR
SELECT N'SELECT * FROM '
+QUOTENAME(USER_NAME(o.uid))
+N'.'+QUOTENAME(o.name)
+N' WHERE '+QUOTENAME(c.name)
+@sql,
N'INSERT # VALUES(N'+QUOTENAME(o.name,N'''')
+N',N'+QUOTENAME(c.name,N'''')
+N',N'+QUOTENAME(QUOTENAME(t.name)+CASE
WHEN t.name IN (N'decimal',N'numeric')
THEN N'('+CAST(c.prec as varchar)+N','+CAST(c.scale as varchar)+N')'
WHEN t.name=N'float'
OR t.name like N'%char'
OR t.name like N'%binary'
THEN N'('+CAST(c.prec as varchar)+N')'
ELSE N'' END,N'''')
+N',@sql)'
FROM sysobjects o,syscolumns c,systypes t,#t tt
WHERE o.id=c.id
AND c.xusertype=t.xusertype
AND t.xtype=tt.xtype
AND OBJECTPROPERTY(o.id,N'IsUserTable')=1

OPEN tb
FETCH tb INTO @sql,@sql1
WHILE @@FETCH_STATUS=0
BEGIN
SET @sql1=N'IF EXISTS('+@sql+N') '+@sql1
EXEC sp_executesql @sql1,N'@value sql_variant,@sql nvarchar(4000)',@value,@sql
FETCH tb INTO @sql,@sql1
END
CLOSE tb
DEALLOCATE tb
SELECT * FROM #

GO





法二:

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

declare @str varchar(100)
set @str='aa' --要搜索的字符串

declare @s varchar(8000)
declare tb cursor local for
select s='if exists(select 1 from ['+b.name+'] where ['+a.name+'] like ''%'+@str+'%'')
print '' ['+b.name+'].['+a.name+']'''
from syscolumns a join sysobjects b on a.id=b.id
where b.xtype='U' and a.status>=0
and a.xusertype in(175,239,231,167)
open tb
fetch next from tb into @s
while @@fetch_status=0
begin
exec(@s)
fetch next from tb into @s
end
close tb
deallocate tb