Oracle 12C新特性是什么

这篇文章主要讲解了“Oracle 12C新特性是什么”,文中的讲解内容简单清晰,易于学习与理解,下面请大家跟着小编的思路慢慢深入,一起来研究和学习“Oracle 12C新特性是什么”吧!

在12c里,推出了History命令,类似Shell中的history命令

语法如下:

SQL> help history

HISTORY

——-

Stores, lists, executes, edits of the commands

entered during the current SQL*Plus session.

HIST[ORY] [N {RUN | EDIT | DEL[ETE]}] | [CLEAR]

N is the entry number listed in the history list.

Use this number to recall, edit or delete the command.

Example:

HIST 3 RUN – will run the 3rd entry from the list.

HIST[ORY] without any option will list all entries in the list.

过程如下:

[oracle@cjcos ~]$ sqlplus / as sysdba

SQL> hist

SP2-1650: History is off, use “SET HIST[ORY] ON” to enable History.

SQL> set hist on

SQL> show pdbs

SQL> select * from v$version;

SQL> select tablespace_name from dba_tablespaces;

SQL> alter session set container=cjcpdb01;

SQL> select * from tab;

SQL> hist

  1  show pdbs

  2  select * from v$version;

  3  select tablespace_name from dba_tablespaces;

  4  alter session set container=cjcpdb01;

  5  select * from tab;

—重新执行第二条  

SQL> hist 2 run

—编辑第二条

SQL> hist 2 edit

感谢各位的阅读,以上就是“Oracle 12C新特性是什么”的内容了,经过本文的学习后,相信大家对Oracle 12C新特性是什么这一问题有了更深刻的体会,具体使用情况还需要大家实践验证。这里是云搜网,小编将为大家推送更多相关知识点的文章,欢迎关注!


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