sql2005分区表实例

 
  -- 创建数据库即文件组
  create   database  dbStudy
on   primary  
(name = ' dbPrimary ' ,
filename = ' d:\dbprimary.mdf ' ),
filegroup dbstudyfilegroup1
(name = ' dbgroupfile1 ' ,
filename = ' d:\dbgroupfile1.ndf '
),
(name = ' dbgroupfile2 ' ,
filename = ' d:\dbgroupfile2.ndf '
),
filegroup dbstudyfilegroup2
(name = ' dbgroupfile3 ' ,
filename = ' d:\dbgroupfile3.ndf '
),
filegroup dbstudyfilegroup3
(name = ' dbgroupfile4 ' ,
filename = ' d:\dbgroupfile4.ndf '
)
log   on  
(name = ' dbstudylog ' ,
filename = ' d:\dbgrouplog.ldf ' )
go  

     
-- 创建分区函数,指定类型为datetime,因为有四个文件，所以这里
-- 定义三个分区点 
create  partition  function  fn_partition ( datetime )
as  
RANGE  RIGHT   FOR   VALUES  
( ' 20000401 ' ,  ' 20000701 ' ,  ' 20001001 ' )

 
-- 创建分区架构，使文件组与函数相关联
create  partition scheme  Scheme_orderDate
as
partition fn_partition
to  (  [ PRIMARY ] ,
[ dbstudyfilegroup1 ] ,
[ dbstudyfilegroup2 ] ,
[ dbstudyfilegroup3 ]
)
-- -开始对表分区 
CREATE   TABLE   [ dbo ] . [ Orders ] (
     [ orderid ]   [ int ]      NOT   NULL ,
     [ orderdate ]   datetime   NOT   NULL ,
     [ empid ]   [ int ]   NOT   NULL ,
     [ custid ]   [ varchar ] ( 5 )  NOT   NULL ,
     [ qty ]   [ int ]   NOT   NULL ) 
     ON  Scheme_orderDate( [ orderdate ] )
-- 添加测试数据      
  insert   into  orders  values   ( 1 , ' 20000301 ' , 1 , 1 , 1 ) 
  insert   into  orders  values  ( 1 , ' 20000301 12:12:2 ' , 1 , 1 , 1 ) 
  insert   into  orders  values  ( 1 , ' 20000401 ' , 1 , 1 , 1 )
   insert   into  orders  values  ( 2 , ' 20000701 ' , 1 , 1 , 1 )
   insert   into  orders  values  ( 3 , ' 20001001 ' , 1 , 1 , 1 )
   insert   into  orders  values  ( 4 , ' 20000402 ' , 1 , 1 , 1 )
   insert   into  orders  values  ( 5 , ' 20000705 ' , 1 , 1 , 1 )
   insert   into  orders  values  ( 6 , ' 20001004 ' , 1 , 1 , 1 )
--  数据查询
select  partition  =  $partition.fn_partition(OrderDate)
      ,rows       =   count ( * )
      ,minval     =   min (OrderDate)
      ,maxval     =   max (OrderDate)
   from  dbo.Orders
  group   by  $partition.fn_partition(OrderDate)
  order   by  partition




  --  创建分区聚集索引  
  create   clustered   index  ClusterOrderId  on  orders(orderid)
  drop   index  orders.clusterorderid 
--  为分区表设置主键
--  必须把分区列包含在主键/唯一约束/唯一索引的键列中
alter   table  dbo.Orders  add   constraint  PK_Orders  primary   key  (OrderID,OrderDate)
go