之前安装了12c版本，最近做练习发现怎么没有scott用户和11g自带的emp，dept等等的表。于是尝试解锁用户，发现用户不存在
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创新互联专业和态度为您提供的服务SQL> alter user scott account unlock;
alter user scott account unlock
*
ERROR at line 1:
ORA-01918: user 'SCOTT' does not exist
手动创建用户，出错，和11g不太一样
SQL> create user scott identified by oracle;
create user scott identified by oracle
*
ERROR at line 1:
ORA-65096: invalid common user or role name
原因和pdb，cdb有关。pdb和cdb是12c的新特性，没有具体学过，不知道是神马意思，不过可以参考这篇文章：http://www.cnblogs.com/tzetze/p/3665903.html
查看错误ORA--65096
SQL> !oerr ora 65096
65096, 00000, "invalid common user or role name"
// *Cause: An attempt was made to create a common user or role with a name
// that wass not valid for common users or roles. In addition to
// the usual rules for user and role names, common user and role
// names must start with C## or c## and consist only of ASCII
// characters.
// *Action: Specify a valid common user or role name.
//
在CDB中用户得以C##开头。
试了一下在sql中@/u01/app/oracle/product/12.1.0/db_1/rdbms/admin/utlsampl.sql，也不行，因为里面的用户名有问题
于是自己改写了这个脚本，步骤如下：
当前路径
[oracle@localhost ~]$ pwd
/home/oracle
复制一个副本到当前目录
[oracle@localhost ~]$ cp /u01/app/oracle/product/12.1.0/db_1/rdbms/admin/utlsampl.sql .
重命名文件为scott.sql：
[oracle@localhost ~]$ mv utlsampl.sql scott.sql
修改scott.sql：
主要是将scott用户相关的语句改为c##scott，删除最后的EXIT，修改完的scott.sql如下：
scott.sql
SET TERMOUT OFF
SET ECHO OFF
DROP USER C##SCOTT CASCADE;
create user c##scott identified by tiger;
grant connect,resource,unlimited tablespace to c##scott container=all;
alter user c##scott default tablespace users;
alter user c##scott temporary tablespace temp;
CONNECT C##SCOTT/tiger
CREATE TABLE DEPT
(DEPTNO NUMBER(2) CONSTRAINT PK_DEPT PRIMARY KEY,
DNAME VARCHAR2(14) ,
LOC VARCHAR2(13) ) ;
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','dd-mm-rr')-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', 'dd-mm-rr')-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);
CREATE TABLE BONUS
(
ENAME VARCHAR2(10) ,
JOB VARCHAR2(9) ,
SAL NUMBER,
COMM NUMBER
) ;
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;
测试：
sqlplus / as sysdba
SQL> @/home/oracle/scott.sql;
SQL> conn c##scott/tiger
Connected.
SQL> select table_name from user_tables;
TABLE_NAME
--------------------------------------------------------------------------------
SALGRADE
BONUS
DEPT
EMP
SQL> select * from SALGRADE;
GRADE LOSAL HISAL
---------- ---------- ----------
1 700 1200
2 1201 1400
3 1401 2000
4 2001 3000
5 3001 9999
ok!
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