SELECT dbms_lob.substr(dbms_metadata.get_ddl('INDEX', INDEX_NAME))||';' from dba_indexes where owner='需要导出所有索引的用户' refer to:https://www.cnblogs.com/lhrbest/p/8820438.html http://www.cnblogs.com/wlzhang/p/5035771.html…
--选择部门中30的雇员SELECT * from emp where DEPTNO=30;--列出所有办事员的姓名.部门.编号--采用内连接方式,也就是等值链接,也是最常用的链接SELECT ename,empno,dname from emp e INNER JOINdept d on e.deptno=d.deptno where job='CLERK';--找出佣金高于薪金的雇员select * from emp where comm>sal;--找出佣金高于薪金60%的雇员select…
1登录sys用户 2创建目录 create directory [dirname] as ‘[dirpath]’; dirname:取的名字 dirpath:dmp文件导出路径 示例:create directory cea as 'D:/'; 3查看一下是否存在该目录 select * from dba_directories; 4赋予指定用户在此目录的读写权限 GRANT READ, WRITE ON DIRECTORY [dirname] to [dbuser]; dirname:取的名字…
oracle@yingxiang-testServer1 oradata]$ export ORACLE_SID=APPDB[oracle@yingxiang-testServer1 oradata]$ lsnrctl start LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 22-MAY-2014 11:42:15 Copyright (c) 1991, 2013, Oracle. All rights reserved. TN…