Oracle用戶管理

創建一個用戶user3，口令爲user3，默認表空間爲USERS，在該表空間的配額爲10MB。
CREATE USER user3 IDENTIFIED BY user3 DEFAULT TABLESPACE USERS QUOTA 10M ON USERS;

爲用戶user3授予CREATE SESSION、CREATE TABLE、CREATE VIEW系統權限。
GRANT CREATE SESSION,CREATE TABLE,CREATE VIEW TO user3;

創建一個用戶user4，口令爲user4，默認表空間爲USER，在該表空間的配額爲10MB，概要文件爲默認。
CREATE USER user4 IDENTIFIED BY user4 DEFAULT TABLESPACE USERS TEMPORARY TABLESPACE TEMP QUOTA 10M ON USERS;

爲用戶user4授予CREATE SESSION、CREATE TABLE、CREATE INDEX系統權限。user4獲得權限後，爲用戶user3授予CREATE INDEX系統權限。
GRANT CREATE SESSION,CREATE TABLE,CREATE ANY INDEX TO user4 WITH ADMIN OPTION;
grant Create any index to user3;

 

CREATE ROLE high_manager_role;
CREATE ROLE middle_manager_role IDENTIFIED BY middlerole;
CREATE ROLE low_manager_role IDENTIFIED BY lowrole;

GRANT CONNECT,CREATE TABLE,CREATE VIEW TO low_manager_role;
GRANT CONNECT,CREATE TABLE,CREATE VIEW TO middle_manager_role;
GRANT CONNECT,RESOURCE,DBA TO high_manager_role;

GRANT SELECT,UPDATE,INSERT,DELETE ON scott.emp TO high_manager_role;