oracle最大并发数查看

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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.

                                                                                                                                                                                               
ColumnDatatypeDescription
           

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
                                                                                 在初始化文件里说明了,就以初始化文件为主