【学习】SQL基础-001-前期准备

1.环境参数设置
  @?/sqlplus/admin/glogin.sql
       
  export ORACLE_SID=XXX

2.启动
 sqlplus / as sysdba
 SQL> startup
 SQL> select status from v$instance;

3.(可选)重建scott方案
 @?/rdbms/admin/utlsampl.sql

4.解锁scott账号
  使用sys用户解锁
  sqlplus / as sysdba
  SQL> alter user scott identified by tiger unlock;