PHP笔记网

SELECT  
	case when a.colorder=1 then d.name else '' end 表名, 
  case when a.colorder=1 then isnull(f.value,'') else '' end 表说明,
	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 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 主键, 
	b.name 类型, 
	a.length 占用字节数 , 
	COLUMNPROPERTY(a.id,a.name,'PRECISION') 长度, 
	isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) 小数位数, 
	case when a.isnullable=1 then '√'else '' end 允许空, 
	isnull(e.text,'') 默认值, 
	isnull(g.[value],'') 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 
left join sys.extended_properties f on d.id=f.major_id and f.minor_id =0 
-- where d.name='要查询的表名' --如果只查询指定表,加上此条件  
order by a.id,a.colorder