oracle中schema指的是什么?
看来有的人还是对schema的真正含义不太理解,现在我再次整理了一下,希望对大家有所帮助。我们先来看一下他们的定义:A schema is a collection of database objects (used by a user.). Schema objects are the logical structures that directly refer to the data
查看oracle数据库的连接数以及用户视图
1、查询oracle的连接数select count(*) from v$session;2、查询oracle的并发连接数select count(*) from v$session where status='ACTIVE';3、查看不同用户的连接数select username,count(username) from v$session where username is n