SQL2008提取数据库表的字段信息

SELECT ( CASE WHEN a.colorder=1 THEN d.name ELSE '' END)表名, a.colorder 字段序号, a.name 字段名, 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_idWHERE d.name='数据表名称'ORDER BY a.id,a.colorder