Return
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Title
Error ORA-02391 exceeded simultaneous users when logging into database -
Description
Error ORA-02391 exceeded simultaneous users occurs when logging into a particular database
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Cause
Oracle issue: An attempt was made to exceed the maximum number of concurrent sessions allowed by the SESSION_PER_USER clause of the user profile.
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Resolution
Within Oracle, end one or more concurrent sessions or ask the database administrator to increase the SESSION_PER_USER limit of the user profile.