From the course: Oracle Database 12c: Administration
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LREG process - Oracle Database Tutorial
From the course: Oracle Database 12c: Administration
LREG process
- [Instructor] Next in our Oracle background process tour is the LREG process, or listener registration process. The LREG process has a very straightforward role in the Oracle database architecture. It is responsible for registering the Oracle instance with the Oracle network listener. Wait, what? The Oracle listener? Well, that's new. Yep, it is. The Oracle network listener, often shortened to just Oracle listener or even just listener, is the process that is responsible for accepting remote incoming user connections and start up the required Oracle server processes to serve these connections. Yes, that's right, we've previously talked about how individual users' sessions connecting to an Oracle database will get a dedicated server process to perform the various duties on their behalf. However, we have yet to talk about how users actually open a connection to an Oracle database. That's where the listener comes into play. We have a full chapter dedicated to the Oracle network…
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