How can Oracle query the maximum number of connections for a user?

You can check the maximum number of connections for an Oracle database user by querying the v$resource_limit view. The specific query statement is as follows:

SELECT resource_name, max_utilization
FROM v$resource_limit
WHERE resource_name = 'sessions'
AND username = '要查询的用户名';

sessions represent the maximum number of connections for a session, while username refers to the username being queried. By executing the above query statement, you can see the maximum connection limit for that user.