declare @table_name   varchar(100)-- 表名

 set @table_name='bqcform101'

--============表结构

    select 类别,表名or字段名,描述,字段类型,是否自增,允许为NULL,默认值 from

    (

    SELECT '表名' 类别,-1 column_id,tbs.name 表名or字段名,ds.value 描述,'' 字段类型,'' 是否自增,'' 允许为NULL,'' 默认值,1 rn

    FROM sys.extended_properties ds

    LEFT JOIN sysobjects tbs ON ds.major_id=tbs.id

    WHERE  ds.minor_id=0 and tbs.name=@table_name

    union

    SELECT

        @table_name 类别

        ,c.column_id

        ,C.name 表名or字段名

        ,s.value 描述

        ,字段类型 = T.name + CASE T.user_type_id WHEN 41 THEN '('+CAST(C.scale AS VARCHAR) +')'     -- time

            WHEN 42 THEN '('+CAST(C.scale AS VARCHAR) +')'                                      -- datetime2

            WHEN 43 THEN '('+CAST(C.scale AS VARCHAR) +')'                                      -- datetimeoffset

            WHEN 106 THEN '('+CAST(C.precision  AS VARCHAR)+','+ CAST(C.scale AS VARCHAR) +')'  -- decimal

            WHEN 108 THEN '('+CAST(C.precision  AS VARCHAR)+','+ CAST(C.scale AS VARCHAR) +')'  -- numeric

            WHEN 165 THEN '('+ISNULL(CAST(NULLIF(C.max_length,-1) AS VARCHAR),'MAX') +')'       -- varbinary

            WHEN 167 THEN '('+ISNULL(CAST(NULLIF(C.max_length,-1) AS VARCHAR),'MAX') +')'       -- varchar

            WHEN 173 THEN '('+ISNULL(CAST(NULLIF(C.max_length,-1) AS VARCHAR),'MAX') +')'       -- binary

            WHEN 175 THEN '('+ISNULL(CAST(NULLIF(C.max_length,-1) AS VARCHAR),'MAX') +')'       -- char

            WHEN 231 THEN '('+ISNULL(CAST(NULLIF(C.max_length,-1)/2 AS VARCHAR),'MAX') +')'     -- nvarchar(该字段校检根据实际情况)

            WHEN 239 THEN '('+ISNULL(CAST(NULLIF(C.max_length,-1) AS VARCHAR),'MAX') +')'       -- nchar

            ELSE ''

            END

        ,case when C.is_identity=1 then '是' else '' end 是否自增

        --cast(C.is_identity as varchar(10)) 是否自增

        ,case when C.is_nullable=1 then '是'else '' end 允许为NULL

        ,默认值 = ISNULL(STUFF(LEFT(D.definition,LEN(D.definition)-1),1,1,''),'')

        ,3 rn

    FROM sys.columns C

    INNER JOIN sys.types T ON C.user_type_id = T.user_type_id

    LEFT JOIN sys.default_constraints D ON D.[object_id] =C.default_object_id AND D.parent_object_id = C.[object_id] AND D.parent_column_id = C.column_id

    left join (select major_id,minor_id,value from sys.extended_properties) s on s.major_id = c.object_id and s.minor_id = c.column_id

    WHERE C.[object_id] = OBJECT_ID(@table_name)

    ) s

    order by column_id,rn  

--============主键

select Primary_COLUMN_NAME = convert(sysname,c.name)

from

sysindexes i, syscolumns c, sysobjects o

where o.id = object_id(@table_name)

and o.id = c.id

and o.id = i.id

and (i.status & 0x800) = 0x800

and (c.name = index_col (@table_name, i.indid,  1) or

     c.name = index_col (@table_name, i.indid,  2) or

     c.name = index_col (@table_name, i.indid,  3) or

     c.name = index_col (@table_name, i.indid,  4) or

     c.name = index_col (@table_name, i.indid,  5) or

     c.name = index_col (@table_name, i.indid,  6) or

     c.name = index_col (@table_name, i.indid,  7) or

     c.name = index_col (@table_name, i.indid,  8) or

     c.name = index_col (@table_name, i.indid,  9) or

     c.name = index_col (@table_name, i.indid, 10) or

     c.name = index_col (@table_name, i.indid, 11) or

     c.name = index_col (@table_name, i.indid, 12) or

     c.name = index_col (@table_name, i.indid, 13) or

     c.name = index_col (@table_name, i.indid, 14) or

     c.name = index_col (@table_name, i.indid, 15) or

     c.name = index_col (@table_name, i.indid, 16)

     )