VLDB超大数据库 分区表之列表分区表详解

三：列表分区
列表分区明确指定了根据某字段的某个具体值进行分区，而不是像范围分区那样根据字段的值范围来划分的。

Sql代码:
create table graderecord03
(  
  sno varchar2(10),  
  sname varchar2(20),  
  dormitory varchar2(3),  
  grade int 
)  
partition by list(dormitory)  
(  
  partition d229 values('229') tablespace test01,  
  partition d228 values('228') tablespace test02,  
  partition d240 values('240') tablespace test03 
) 
 以上根据宿舍来进行列表分区，插入与范围分区实验相同的数据，做查询如下：
Sql代码:

 

Insert into graderecord03 values('511601','魁','229',92);
insert into graderecord03 values('511602','凯','229',62);
insert into graderecord03 values('511603','东','229',26);
insert into graderecord03 values('511604','亮','228',77);  
insert into graderecord03 values('511605','敬','228',47);
insert into graderecord03(sno,sname,dormitory) values('511606','峰','228');
insert into graderecord03 values('511607','明','240',90);
insert into graderecord03 values('511608','楠','240',100);
insert into graderecord03 values('511609','涛','240',67);
insert into graderecord03 values('511610','博','240',75);
insert into graderecord03 values('511611','铮','240',60);

select * from graderecord03 ;

select * from graderecord03 partition(d229);  
select * from graderecord03 partition(d228);  
select * from graderecord03 partition(d240); 
 d229分区所得数据如下:

SQL> select * from graderecord03 ;

SNO        SNAME                DOR      GRADE
---------- -------------------- --- ----------
511601     ???                  229         92
511602     ???                  229         62
511603     ???                  229         26
511601     ???                  229         92
511602     ???                  229         62
511603     ???                  229         26
511604     ???                  228         77
511605     ???                  228         47
511606     ???                  228
511604     ???                  228         77
511605     ???                  228         47

SNO        SNAME                DOR      GRADE
---------- -------------------- --- ----------
511606     ???                  228
511607     ???                  240         90
511608     ???                  240        100
511609     ???                  240         67
511610     ???                  240         75
511611     ???                  240         60
511607     ???                  240         90
511608     ???                  240        100
511609     ???                  240         67
511610     ???                  240         75
511611     ???                  240         60

22 rows selected.
SQL> select * from graderecord03 partition(d229);  

SNO        SNAME                DOR      GRADE
---------- -------------------- --- ----------
511601     ???                  229         92
511602     ???                  229         62
511603     ???                  229         26
511601     ???                  229         92
511602     ???                  229         62
511603     ???                  229         26

6 rows selected.

SQL> select * from graderecord03 partition(d228);

SNO        SNAME                DOR      GRADE
---------- -------------------- --- ----------
511604     ???                  228         77
511605     ???                  228         47
511606     ???                  228
511604     ???                  228         77
511605     ???                  228         47
511606     ???                  228

6 rows selected.

SQL> select * from graderecord03 partition(d240); 

SNO        SNAME                DOR      GRADE
---------- -------------------- --- ----------
511607     ???                  240         90
511608     ???                  240        100
511609     ???                  240         67
511610     ???                  240         75
511611     ???                  240         60
511607     ???                  240         90
511608     ???                  240        100
511609     ???                  240         67
511610     ???                  240         75
511611     ???                  240         60

10 rows selected.

SQL>