SQL---retrieve table's infomation fields by fields

 the following sql plus retrieves the  table's infomation fields by fields,you just need pass the table name;

 

代码

   
     

    
      
    
      select
    
       syscolumns.name 
    
      as
    
       ColName 
,systypes.name 
    
      as
    
       ColTypeName ,
 syscolumns.length, sys.extended_properties.value 
    
      as
    
       Mark ,
syscolumns.isnullable 
    
      as
    
       AllowNull ,IsPK 
    
      =
    
       
    
      Case
    
       
    
      when
    
       
    
      exists
    
       
( 
    
      select
    
       
    
      1
    
       
    
      from
    
       sysobjects 
    
      inner
    
       
    
      join
    
       sysindexes 
    
      on
    
       sysindexes.name 
    
      =
    
       sysobjects.name 

    
      inner
    
       
    
      join
    
       sysindexkeys 
    
      on
    
       sysindexes.id 
    
      =
    
       sysindexkeys.id 

    
      and
    
       sysindexes.indid 
    
      =
    
       sysindexkeys.indid 
    
      where
    
       xtype
    
      =
    
      '
    
      PK
    
      '
    
       
    
      and
    
       parent_obj 
    
      =
    
       syscolumns.id 

    
      and
    
       sysindexkeys.colid 
    
      =
    
       syscolumns.colid ) 

    
      then
    
       
    
      1
    
       
    
      else
    
       
    
      0
    
       
    
      end
    
       ,IsIdentity 
    
      =
    
       
    
      Case
    
       syscolumns.status 

    
      when
    
       
    
      128
    
       
    
      then
    
       
    
      1
    
       
    
      else
    
       
    
      0
    
       
    
      end
    
       
    
      from
    
       syscolumns 

    
      inner
    
       
    
      join
    
       systypes 
    
      on
    
       ( syscolumns.xtype 
    
      =
    
       systypes.xtype 

    
      and
    
       systypes.name 
    
      <>
    
      '
    
      _default_
    
      '
    
       
    
      and
    
       systypes.name
    
      <>
    
      '
    
      sysname
    
      '
    
       ) 

    
      left
    
       
    
      outer
    
       
    
      join
    
       sys.extended_properties 
    
      on
    
       ( sys.extended_properties.major_id
    
      =
    
      syscolumns.id
 
    
      and
    
       minor_id
    
      =
    
      syscolumns.colid ) 
    
      where
    
       syscolumns.id 
    
      =
    
       
(
    
      select
    
       id 
    
      from
    
       sysobjects 
    
      where
    
       name
    
      =
    
      'table_name'
    
      ) 
    
      order
    
       
    
      by
    
       syscolumns.colid