What does Oracle listener do?

The Oracle listener is a service that runs on the database host and receives requests from Oracle clients. Sometimes the listener forwards requests to the database server (Figure 8.3), and sometimes it redirects the client somewhere else where the database server listens for dedicated connections (Figure 8.4).

The Oracle listener is a service that runs on the database host and receives requests from Oracle clients. Sometimes the listener forwards requests to the database server (Figure 8.3), and sometimes it redirects the client somewhere else where the database server listens for dedicated connections (Figure 8.4).

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