IF NOT EXISTS(SELECT 1 FROM sys.objects WHERE object_id=object_id(‘Test‘))
BEGIN
 CREATE TABLE Test(
    num INT
 )
END

TRUNCATE TABLE dbo.myuser

DECLARE @Total AS INT
DECLARE @i AS INT
DECLARE @name AS VARCHAR(200)
SELECT name,IDENTITY(INT,1,1) AS Id INTO #TempDelTable FROM sys.tables

SELECT @Total=COUNT(1),@i=1 FROM #TempDelTable

WHILE @i<=@Total
BEGIN
 SELECT @name=name FROM #TempDelTable WHERE Id=@i
 EXEC(‘TRUNCATE TABLE ‘+@name)
 SELECT @i=@i+1
END
DROP TABLE #TempDelTable

GO
IF EXISTS(SELECT 1 FROM sys.objects WHERE object_id=object_id(‘fn_DataDic‘))
BEGIN
    DROP FUNCTION dbo.fn_DataDic
END
GO
CREATE FUNCTION [dbo].[fn_DataDic](@table_name VARCHAR(50))
RETURNS @Result TABLE(
    table_name VARCHAR(100),--表英文名--
    table_name_c VARCHAR(100),--表中文名--
    field_name VARCHAR(100), --列名--
    field_name_c VARCHAR(100), --列名中文名--
    file_sequence INT,--列顺序--
    id VARCHAR(100),--表的id--
    colid VARCHAR(100),--列的id--
    date_type VARCHAR(50),--数据类型--
    width INT,--数据宽度--
    pk bit,--是否主键--
    defaultvalue VARCHAR(100),--默认值--
    isnullable bit, --是否可空--
    isidentity bit --是否主动增长--
) 
AS  /**************************************************************
*函数功能：查询数据库中用户表和视图的数据字典
*输入参数：
    @table_name：表名 如果为NULL或‘‘则查询所有的表或视图
*返回值：
    table_name VARCHAR(100),--表英文名--
    table_name_c VARCHAR(100),--表中文名--
    field_name VARCHAR(100), --列名--
    field_name_c VARCHAR(100), --列名中文名--
    file_sequence INT,--列顺序--
    id VARCHAR(100),--表的id--
    colid VARCHAR(100),--列的id--
    date_type VARCHAR(50),--数据类型--
    width INT,--数据宽度--
    pk bit,--是否主键--
    defaultvalue VARCHAR(100),--默认值--
    isnullable bit, --是否可空--
    isidentity bit --是否主动增长--

*2013-03-29__dudj__创建
***************************************************************/
BEGIN 
    IF @table_name IS NULL OR LTRIM(RTRIM(@table_name))=‘‘
    BEGIN
        INSERT INTO @Result
    SELECT 
        T.name AS table_name,
        ‘‘ AS table_name_c,
        C.name AS field_name,
        ‘‘ AS field_name_c,
        C.colorder AS file_sequence,
        C.id AS id,
        C.colid AS colid,
        TYPE_NAME(C.xtype) AS date_type,
        C.length AS width,
        convert(bit,case when exists(select 1 from sysobjects where xtype=‘PK‘ and parent_obj=c.id and name in (
         select name from sysindexes where indid in(
             select indid from sysindexkeys where id = c.id and colid=c.colid))) then 1 else 0 end)  AS pk,
        ISNULL(CM.text,‘‘) AS defaultvalue,
        ISNULL(C.isnullable,1) AS isnullable,
        ISNULL(COLUMNPROPERTY(c.id,c.name,‘IsIdentity‘),0) AS isidentity
    FROM sysobjects AS T
    LEFT JOIN  syscolumns AS C
    ON c.id=T.id
    LEFT JOIN syscomments CM on c.cdefault=CM.id
    WHERE T.xtype IN (‘U‘,‘V‘)
    END
    ELSE
    BEGIN
        INSERT INTO @Result
    SELECT 
        T.name AS table_name,
        ‘‘ AS table_name_c,
        C.name AS field_name,
        ‘‘ AS field_name_c,
        C.colorder AS file_sequence,
        C.id AS id,
        C.colid AS colid,
        TYPE_NAME(C.xtype) AS date_type,
        C.length AS width,
        convert(bit,case when exists(select 1 from sysobjects where xtype=‘PK‘ and parent_obj=c.id and name in (
         select name from sysindexes where indid in(
             select indid from sysindexkeys where id = c.id and colid=c.colid))) then 1 else 0 end)  AS pk,
        ISNULL(CM.text,‘‘) AS defaultvalue,
        ISNULL(C.isnullable,1) AS isnullable,
        ISNULL(COLUMNPROPERTY(c.id,c.name,‘IsIdentity‘),0) AS isidentity
    FROM sysobjects AS T
    LEFT JOIN  syscolumns AS C
    ON c.id=T.id
    LEFT JOIN syscomments CM on c.cdefault=CM.id
    WHERE T.xtype IN (‘U‘,‘V‘)  AND (T.NAME=@table_name)
    END
     
    
    /*更新表名中文，列名中文说明*/
    UPDATE @Result SET table_name_c=
    (
        SELECT 
            CONVERT(VARCHAR(100),P.VALUE) 
        FROM sys.extended_properties AS P
        WHERE P.minor_id=0 AND P.major_id=id
    ),field_name_c =
    (
        SELECT 
            CONVERT(VARCHAR(100),P.VALUE) 
        FROM sys.extended_properties AS P
        WHERE P.major_id = id AND P.minor_id = colid
    )
    
    RETURN 
END
GO

SELECT * FROM dbo.fn_DataDic(‘myuser‘)