Maximum concurrency and license of Oracle

View the current license status

SQL> show parameter license;NAME                                 TYPE        VALUE------------------------------------ ----------- ------------------------------license_max_sessions                 integer     0license_max_users                    integer     0license_sessions_warning             integer     0

View the maximum number of concurrent connections in Oracle, but view the V $ license view.

V $ license View:

It records the maximum concurrency of Oracle and the number of connections of the current user,
The official documents are described as follows:

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

In fact, the sessions_current in this attempt is equivalent to select count (*) from V $ session where type = 'user'

Show parameter license_max_sessions // you can view the maximum number of concurrent threads. If it is 0, the default value is unlimited.
As described in the initialization file, the initialization file is the main