1.创建oracle表：
CREATE TABLE a
(
ORDER_ID INT NOT NULL,
ORDER DATE,
TOTAL INT,
ID VARCHAR(40)
)
PARTITION BY LIST (ORDER_DATE)
(
PARTITION P_20170101 VALUES (20170101) TABLESPACE tablename,
PARTITION P_20170102 VALUES (20170102) TABLESPACE tablename,
PARTITION P_20170103 VALUES (20170103) TABLESPACE tablename,
PARTITION P_20170104 VALUES (20170104) TABLESPACE tablename,
PARTITION P_20170105 VALUES (20170105) TABLESPACE tablename,
PARTITION P_20170106 VALUES (20170106) TABLESPACE tablename
);
2.查看当前用户的缺省表空间：
select username,default_tablespace from user_users;
3.查看当前用户的角色：
select * from user_role_privs;
4.查看用户下所有表：
select * from user_tables；
5.插入数据：
insert into tabname(字段名，字段名1)values(value1,value2);
6.删除数据：
delete from tabname where a=b
7.修改数据：
update tabname set a1=ba,a2=b2 where ...;
8.增加字段：
alter table tabname add 字段名；
9.删除表和它所有的约束条件：
drop table tabname cascade constraints;
10.修改所有权：
ALTER TABLE user OWNER TO user1;