--搜索指定数据在那个对象中存在.txt(所有表中模糊查询)

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 #