oracle查询最大并发数,oracle最大并发数查看

查看oracle的最大并发数限制，可是查看v$license视图

v$license视图：

里面记录了Oracle最大的并发数以及当前用户的连接数，

官方文档有如下描述：

This view contains information about license

limits.

Column Datatype Description

SESSIONS_MAX

NUMBER

Maximum number of concurrent user sessions

allowed for the instance

SESSIONS_WARNING

NUMBER

Warning limit

for concurrent user sessions for the

instance

SESSIONS_CURRENT

NUMBER

Current number of concurrent

user sessions

SESSIONS_HIGHWATER

NUMBER

Highest number of

concurrent user sessions since the instance

started

USERS_MAX

NUMBER

Maximum number of named users allowed

for the database

其实，该试图中的SESSIONS_CURRENT就等于select count(*) from

v$session where TYPE= 'USER'

show parameter license_max_sessions

//查看最大并发数，如果是0，则默认是无限制，但如果在初始化文件里说明了，就以初始化文件为主