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create table t1(
id number(5) primary key,
name varchar2(8),
score number(3)
)
partition by range(score)
(
partition t1_p1 values less than (60) tablespace my_space1,
partition t1_p2 values less than (maxvalue) tablespace my_space2
);
Table created.
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create table t2(
id number(5) primary key,
name varchar2(8),
sex char(1)
)
partition by LIST(sex)
(
partition t2_male values ('M') tablespace my_space1,
partition t2_female values ('F') tablespace my_space2
);
Table created.
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create table t3(
id number,
name varchar2(10),
loc varchar2(13)
)
partition by hash(name)
(
partition my_space1,
partition my_space2
);
Table created.
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create table t2(
id number(5) primary key,
name varchar2(8),
score number(3)
)
organization index;
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Table A
aid adate
1 a1
2 a2
3 a3
TableB
bid bdate
1 b1
2 b2
4 b4
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select * from a inner join b on a.aid = b.bidÕâÊǽöÈ¡³öÆ¥ÅäµÄÊý¾Ý.
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1 a1 b1
2 a2 b2
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create table emp2 as select * from emp
create table emp3 as select * from emp
create table dept2 as select * from dept
create table salgrade2 as select * from salgrade
2.²é¿´±íµÄÉè¼ÆÇé¿ö:desc dept2;±íʾ²é¿´±ídept2µÄÉè¼ÆÇé¿ö.
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