MS sqlserver 导出表结构

SELECT ( CASE WHEN a.colorder = 1 THEN d.name
ELSE ''
END ) 表名 ,
a.colorder 字段序号 ,
a.name 字段名 ,
( CASE WHEN COLUMNPROPERTY(a.id, a.name, 'IsIdentity') = 1 THEN '√'
ELSE ''
END ) 标识 ,
( CASE WHEN ( SELECT COUNT(*)
FROM sysobjects
WHERE ( name IN (
SELECT name
FROM sysindexes
WHERE ( id = a.id )
AND ( indid IN (
SELECT indid
FROM sysindexkeys
WHERE ( id = a.id )
AND ( colid IN (
SELECT
colid
FROM
syscolumns
WHERE
( id = a.id )
AND ( name = a.name ) ) ) ) ) ) )
AND ( xtype = 'PK' )
) > 0 THEN '√'
ELSE ''
END ) 主键 ,
b.name 类型 ,
a.length 占用字节数 ,
COLUMNPROPERTY(a.id, a.name, 'PRECISION') AS 长度 ,
ISNULL(COLUMNPROPERTY(a.id, a.name, 'Scale'), 0) AS 小数位数 ,
( CASE WHEN a.isnullable = 1 THEN '√'
ELSE ''
END ) 允许空 ,
ISNULL(e.text, '') 默认值 ,
ISNULL(g.[value], '') AS 字段说明
FROM syscolumns a
LEFT JOIN systypes b ON a.xtype = b.xusertype
INNER JOIN sysobjects d ON a.id = d.id
AND d.xtype = 'U'
AND d.name <> 'dtproperties'
LEFT JOIN syscomments e ON a.cdefault = e.id
LEFT JOIN sys.extended_properties g ON a.id = g.major_id
AND a.colid = g.minor_id

WHERE   d.name = '表名'
ORDER BY a.id ,
a.colorder;