SQLServer字典数据统计SQL

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,    
  标识=case when COLUMNPROPERTY(   a.id,a.name,'IsIdentity')=1 then '√'else '' end,    
  主键=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,    
  类型=b.name,    
  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),    
  允许空=case when   a.isnullable=1 then '√'else '' end,    
  默认值=isnull(e.text,''),    
  字段说明=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   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'         --如果只查询指定表,加上此条件    
 order by   a.id,a.colorder