--删除用户
drop user sz cascade;
--创建表空间
create tablespace worktablsp
datafile 'C:\app\lenovo\oradata\orcl\EMPTB.dbf' SIZE 5MAUTOEXTEND ON;
--修改表空间
ALTER tablespace worktablsp 
ADD datafile 'C:\app\lenovo\oradata\orcl\EMPTB.dbf' SIZE 5M;--扩展数据文件大小ALTER database datafile 'C:\app\lenovo\oradata\orcl\EMPTB.dbf' RESIZE 6M;--删除DROP TABLESPACE worktablsp INCLUDING CONTENTS and datafiles
--创建用户:
CREATE USER RH
IDENTIFIED BY HR
DEFAULT  TABLESPACE tablespace  ;--给用户授权:GRANT CONNECT TO RH;  --连接数据库角色
GRANT SELECT ON SCOTT.EMP TO RH;--查看SCOTT.EMP表的权限--分区表--范围分区create table saletb(saleid number ,productid number,saleDate date not null)partition  by range(saleDate)(partition p1 values less than(to_date('2013-01-01','yyyy-mm-dd')),partition p2 values less than(to_date('2014-01-01','yyyy-mm-dd')),partition p3 values less than(to_date('2015-01-01','yyyy-mm-dd')),partition p4 values less than(maxvalue)     );select * from saletb;insert into saletb values(1,1,to_date('2012-01-01','yyyy-mm-dd'));insert into saletb values(2,2,to_date('2013-06-01','yyyy-mm-dd'));insert into saletb values(3,3,to_date('2014-10-01','yyyy-mm-dd'));insert into saletb values(4,4,to_date('2016-01-01','yyyy-mm-dd'));select * from saletb partition(p3);--间隔分区 一个季度（三个月）一个分区CREATE TABLE SALES2
(SALES_ID NUMBER,PRODUCT_ID VARCHAR2(5),SALES_DATE DATE NOT NULL
)PARTITION BY RANGE(SALES_DATE)INTERVAL(NUMTOYMINTERVAL(3,'MONTH'))(PARTITION P1 VALUES LESS THAN (to_date('2013-04-1','yyyy/mm/dd')));--select * from sales2;
--插入数据INSERT INTO sales2 VALUES (1,'a',to_date('2013-08-1','yyyy/mm/dd'));INSERT INTO sales2 VALUES (3,'c',to_date('2013-02-1','yyyy/mm/dd'));--查看分区数据select * from sales2 partition(sys_p41);--获得分区情况SELECT table_name,partition_name FROM user_tab_partitions WHERE table_name=UPPER('sales2');