获取表格信息

SELECT
  表名=case when a.colorder=1 then d.name else '' end,
  字段序號=a.colorder,
  字段名=a.name,
  是否為自增字段=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '是'else '否' end,
  標識种子=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then IDENT_SEED(d.name) else null end,
  遞增量=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then IDENT_INCR(d.name) else null end,
  主鍵=case when exists(SELECT 1 FROM sysobjects where xtype='PK' 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,
  類型型=b.name,
  占用字節數=a.length,
  長度=COLUMNPROPERTY(a.id,a.name,'PRECISION'),
  小數位數=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
  允許空=case when a.isnullable=1 then '√'else '' end,
  默認值=isnull(e.text,''),
  字段說明=isnull(g.[value],'')
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 sysproperties g on a.id=g.id and a.colid=g.smallid
--where d.name='表名'
order by a.id,a.colorder