connection mode of the databaseConnectionMOde:
- dedicated Server Mode (proprietary mode)
- when a user makes a request, such as a remoteClientconnected to the database through the listener,ORACLEserver-side will enable a process to respond,ORACLE-Side Processand theClient-Side Processcommunication consists of aSession,ORACLEprocess to help users issueSQLstatement to return the result to the user.
- one-to-many, a user process corresponding to a server process, response quickly, but if the user is more, the database pressure is relatively large .
- Share Server Mode
- Shared service mode, which sends a user's request to the server process through a distribution . equivalent to a middle key .
OracleConnection(Connection)Conference Sessions(session)
- Connection: communication between a User Process and an instance
- session: specific connection of a user to an instance through a User Process
Connection mode for Oracle database connection mode, connect connection session
