• Oracle 12c 数据库中scott用户不存在的解决方法


    -- 使用超级管理员登录
    CONN sys/change_on_install AS SYSDBA ;
    -- 创建c##scott用户
    CREATE USER c##scott IDENTIFIED BY tiger ;
    -- 为用户授权
    GRANT CONNECT,RESOURCE,UNLIMITED TABLESPACE TO c##scott CONTAINER=ALL ;
    -- 设置用户使用的表空间
    ALTER USER c##scott DEFAULT TABLESPACE USERS;
    ALTER USER c##scott TEMPORARY TABLESPACE TEMP;
    -- 使用c##scott用户登录
    CONNECT c##scott/tiger

    ==退出plus 重新登录一次

    建议使用sql devploer 链接scott执行以下脚本。

    -- 创建数据表
    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 
    );
    CREATE TABLE bonus (
        enamE    VARCHAR2(10)    ,
        job        VARCHAR2(9)  ,
        sal        NUMBER,
        comm    NUMBER 
    ) ;
    CREATE TABLE salgrade ( 
        grade        NUMBER,
        losal        NUMBER,
        hisal        NUMBER 
    );
    -- 插入测试数据 —— 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');
    -- 插入测试数据 —— emp
    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('13-07-87','dd-mm-yyyy')-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('13-07-87','dd-mm-yyyy')-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);
    -- 插入测试数据 —— salgrade
    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);
    -- 事务提交
    COMMIT;


    范例:查询emp表数据(指令之后要使用“;”完结)
    SELECT * FROM emp ;

    范例:使用ed命令调用本机记事本程序
    ED mldn

    范例:使用SYS用户登录
    CONN sys/change_on_install AS SYSDBA ;

    范例:在sys用户中查询c##scott.emp表数据
    SELECT * FROM c##scott.emp ;

    范例:使用sys用户以管理员方式登录
    CONN sys/change_on_install AS SYSDBA ;

    范例:将CDB的切换到PDB
    ALTER SESSION SET CONTAINER=pdbmldn ;

    范例:打开PDBMLDN可插入数据库
    ALTER DATABASE pdbmldn OPEN ;

    范例:通过CDB打开PDBMLDN可插入数据库
    ALTER PLUGGABLE DATABASE pdbmldn OPEN ;

    范例:在PDBMLDN下察看scott与sh用户是否存在
    SELECT username FROM dba_users WHERE username='SCOTT' OR username='SH' ;

    范例:查询scott用户
    SELECT * FROM scott.emp ;

    范例:切换回CDB容器
    ALTER SESSION SET CONTAINER=CDB$ROOT ;


    范例:察看dept的表结构
    DESC dept ;

    范例:使用copy指令
    HOST COPY D:mldn.sql D:hello.sql

    范例:查询emp表
    SELECT * FROM emp ;

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  • 原文地址:https://www.cnblogs.com/zangdalei/p/5482732.html
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