MS SqlServer 获取表结构

SELECT
表名 = case when a.colorder=1 then d.name else '' end,
表说明 = case when a.colorder=1 then isnull(f.value,'') else '' end,
字段序号 = a.colorder,
字段名 = a.name,
类型 = CASE WHEN b.name = 'varchar' OR b.name = 'nvarchar' THEN b.name+'('+CONVERT(VARCHAR(20),COLUMNPROPERTY(a.id,a.name,'PRECISION'))+')' ELSE b.name END,
字段说明 = isnull(g.[value],''),
主键 = case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=a.id and name in (
SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then '√' else '' end,
占用字节数 = a.length,
长度 = COLUMNPROPERTY(a.id,a.name,'PRECISION'),
小数位数 = isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0)
FROM syscolumns a
left join systypes b
on a.xusertype=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
left join sys.extended_properties f
on  d.id=f.major_id and f.minor_id=0
where  d.name='Customer' --如果只查询指定表,加上此红色where条件，tablename是要查询的表名；去除红色where条件查询所有的表信息
order by  a.id,a.colorder