SQL Fundamentals || Oracle SQL语言 语句 解释 Create user Creates a user(usually performed by a DBA) Grant Gives other users privileges to access the objects Create role Creates a collection of privileges, usually performed by a DBA Alter user Changes a use
/etc/profile:此文件为系统的每个用户设置环境信息,当用户第一次登录时,该文件被执行.并从/etc/profile.d目录的配置文件中搜集shell的设置. 英文描述为: # /etc/profile # System wide environment and startup programs, for login setup # Functions and aliases go in /etc/bashrc # It's NOT a good idea to change this