Oracle12c SCOTT用户解锁

1.oracle12c 安装完毕后是没有scott用户的，新建命令窗口，连接oracle之后，运行以下命令添加解锁scott用户

Connected to Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 
Connected as scott@127.0.0.1/orcl

SQL> @C:\app\Admin\virtual\product\12.2.0\dbhome_1\rdbms\admin\scott.sql

2.scott.sql 文件内容，用户密码为TIGER

Rem Copyright (c) 1990 by Oracle Corporation
Rem NAME
REM    UTLSAMPL.SQL
Rem  FUNCTION
Rem  NOTES
Rem  MODIFIED
Rem	gdudey	   06/28/95 -  Modified for desktop seed database
Rem	glumpkin   10/21/92 -  Renamed from SQLBLD.SQL
Rem	blinden   07/27/92 -  Added primary and foreign keys to EMP and DEPT
Rem	rlim	   04/29/91 -	      change char to varchar2
Rem	mmoore	   04/08/91 -	      use unlimited tablespace priv
Rem	pritto	   04/04/91 -	      change SYSDATE to 13-JUL-87
Rem   Mendels	 12/07/90 - bug 30123;add to_date calls so language independent
Rem
rem
rem $Header: utlsampl.sql 7020100.1 94/09/23 22:14:24 cli Generic<base> $ sqlbld.sql
rem
SET TERMOUT OFF
SET ECHO OFF

rem CONGDON    Invoked in RDBMS at build time.	 29-DEC-1988
rem OATES:     Created: 16-Feb-83

GRANT CONNECT,RESOURCE,UNLIMITED TABLESPACE TO SCOTT IDENTIFIED BY TIGER;
ALTER USER SCOTT DEFAULT TABLESPACE USERS;
ALTER USER SCOTT TEMPORARY TABLESPACE TEMP;
CONNECT SCOTT/TIGER
DROP TABLE DEPT;
CREATE TABLE DEPT
       (DEPTNO NUMBER(2) CONSTRAINT PK_DEPT PRIMARY KEY,
	DNAME VARCHAR2(14) ,
	LOC VARCHAR2(13) ) ;
DROP TABLE EMP;
CREATE TABLE EMP
       (EMPNO NUMBER(4) CONSTRAINT PK_EMP PRIMARY KEY,
	ENAME VARCHAR2(10),
	JOB VARCHAR2(9),
	MGR NUMBER(4),
	HIREDATE DATE,
	SAL NUMBER(7,2),
	COMM NUMBER(7,2),
	DEPTNO NUMBER(2) CONSTRAINT FK_DEPTNO REFERENCES DEPT);
INSERT INTO DEPT VALUES
	(10,'ACCOUNTING','NEW YORK');
INSERT INTO DEPT VALUES (20,'RESEARCH','DALLAS');
INSERT INTO DEPT VALUES
	(30,'SALES','CHICAGO');
INSERT INTO DEPT VALUES
	(40,'OPERATIONS','BOSTON');
INSERT INTO EMP VALUES
(7369,'SMITH','CLERK',7902,to_date('17-12-1980','dd-mm-yyyy'),800,NULL,20);
INSERT INTO EMP VALUES
(7499,'ALLEN','SALESMAN',7698,to_date('20-2-1981','dd-mm-yyyy'),1600,300,30);
INSERT INTO EMP VALUES
(7521,'WARD','SALESMAN',7698,to_date('22-2-1981','dd-mm-yyyy'),1250,500,30);
INSERT INTO EMP VALUES
(7566,'JONES','MANAGER',7839,to_date('2-4-1981','dd-mm-yyyy'),2975,NULL,20);
INSERT INTO EMP VALUES
(7654,'MARTIN','SALESMAN',7698,to_date('28-9-1981','dd-mm-yyyy'),1250,1400,30);
INSERT INTO EMP VALUES
(7698,'BLAKE','MANAGER',7839,to_date('1-5-1981','dd-mm-yyyy'),2850,NULL,30);
INSERT INTO EMP VALUES
(7782,'CLARK','MANAGER',7839,to_date('9-6-1981','dd-mm-yyyy'),2450,NULL,10);
INSERT INTO EMP VALUES
(7788,'SCOTT','ANALYST',7566,to_date('13-JUL-87')-85,3000,NULL,20);
INSERT INTO EMP VALUES
(7839,'KING','PRESIDENT',NULL,to_date('17-11-1981','dd-mm-yyyy'),5000,NULL,10);
INSERT INTO EMP VALUES
(7844,'TURNER','SALESMAN',7698,to_date('8-9-1981','dd-mm-yyyy'),1500,0,30);
INSERT INTO EMP VALUES
(7876,'ADAMS','CLERK',7788,to_date('13-JUL-87')-51,1100,NULL,20);
INSERT INTO EMP VALUES
(7900,'JAMES','CLERK',7698,to_date('3-12-1981','dd-mm-yyyy'),950,NULL,30);
INSERT INTO EMP VALUES
(7902,'FORD','ANALYST',7566,to_date('3-12-1981','dd-mm-yyyy'),3000,NULL,20);
INSERT INTO EMP VALUES
(7934,'MILLER','CLERK',7782,to_date('23-1-1982','dd-mm-yyyy'),1300,NULL,10);
DROP TABLE BONUS;
CREATE TABLE BONUS
	(
	ENAME VARCHAR2(10)	,
	JOB VARCHAR2(9)  ,
	SAL NUMBER,
	COMM NUMBER
	) ;
DROP TABLE SALGRADE;
CREATE TABLE SALGRADE
      ( GRADE NUMBER,
	LOSAL NUMBER,
	HISAL NUMBER );
INSERT INTO SALGRADE VALUES (1,700,1200);
INSERT INTO SALGRADE VALUES (2,1201,1400);
INSERT INTO SALGRADE VALUES (3,1401,2000);
INSERT INTO SALGRADE VALUES (4,2001,3000);
INSERT INTO SALGRADE VALUES (5,3001,9999);
COMMIT;

SET TERMOUT ON
SET ECHO ON

3.添加字段注释和表注释

COMMENT ON TABLE EMP IS '雇员表';
COMMENT ON TABLE DEPT IS '部门表';
COMMENT ON TABLE BONUS IS '工资表';
COMMENT ON TABLE SALGRADE IS '工资等级表';
COMMENT ON COLUMN EMP.EMPNO IS '雇员编号';
COMMENT ON COLUMN EMP.ENAME IS '雇员姓名';
COMMENT ON COLUMN EMP.JOB IS '雇员职位';
COMMENT ON COLUMN EMP.MGR IS '雇员对应的领导的编号';
COMMENT ON COLUMN EMP.HIREDATE IS '雇员的雇佣日期';
COMMENT ON COLUMN EMP.SAL IS '雇员的基本工资';
COMMENT ON COLUMN EMP.COMM IS '奖金或补助';
COMMENT ON COLUMN EMP.DEPTNO IS '所在部门编号';
COMMENT ON COLUMN DEPT.DEPTNO IS '部门编号';
COMMENT ON COLUMN DEPT.DNAME IS '部门名称';
COMMENT ON COLUMN DEPT.LOC IS '部门所在位置';
COMMENT ON COLUMN SALGRADE.GRADE IS '工资等级';
COMMENT ON COLUMN SALGRADE.LOSAL IS '此等级的最低工资';
COMMENT ON COLUMN SALGRADE.HISAL IS '此等级的最高工资';
COMMENT ON COLUMN BONUS.ENAME IS '雇员名字';
COMMENT ON COLUMN BONUS.JOB IS '雇员职位';
COMMENT ON COLUMN BONUS.SAL IS '雇员工资';
COMMENT ON COLUMN BONUS.COMM IS '雇员资金';

SELECT
  A.TABLE_NAME,
  B.COMMENTS AS TABLE_COMMENTS,
  A.COLUMN_NAME,
  A.COMMENTS AS COLUMN_COMMENTS
FROM USER_COL_COMMENTS A
LEFT JOIN USER_TAB_COMMENTS B ON A.TABLE_NAME = B.TABLE_NAME
WHERE A.TABLE_NAME IN ('EMP','DEPT','BONUS','SALGRADE');