Oracle 最大连接数 Session Process
Oracle 最大连接数 Session Process 1. 查看processes和sessions参数SQLgt; show parameter processesprocesses
Oracle 最大连接数 Session Process
1. 查看processes和sessions参数
SQL> show parameter processes
processes integer 50
SQL> show parameter sessions
sessions integer 60
2. 修改processes和sessions值
SQL> alter system set processes=300 scope=spfile;
SQL> alter system set sessions=335 scope=spfile;
注:
.修改processes和sessions值必须重启oracle服务才能生效
.Oracle的连接数(sessions)与其参数文件中的进程数(process)有关,sessions=(1.1*process+5)
3.查询
查询数据库当前进程的连接数:
SQL> select count(*) from v$process;
查看数据库当前会话的连接数:
SQL> select count(*) from v$session;
查看数据库的并发连接数:
SQL> select count(*) from v$session where status='ACTIVE';
查看当前数据库建立的会话情况:
SQL> select sid,serial#,username,program,machine,status from v$session;
查询数据库允许的最大连接数:
SQL> select value from v$parameter where name = 'processes';
SQL> show parameter processes;
查看当前有哪些用户正在使用数据:
SQL> select oSUSEr,a.username,cpu_time/executions/1000000||'s',sql_fulltext,machine from v$session a,v$sqlarea b where a.sql_address = b.address order by cpu_time/executions desc;
备注:UNIX 1个用户session对应一个操作系统process,,而Windows体现在线程。
本文永久更新链接地址:

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