April 1999
Intermediate to advanced
552 pages
15h 39m
English
Content preview from Oracle Distributed SystemsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 2. SQL*Net and Net8
SQL*Net and Net8 are the network protocols Oracle supplies to support communication with an Oracle database over a network. Net8 is the new moniker for SQL*Net which Oracle has introduced with Oracle8.
Protocol Overview
Even if a process is running on the same machine as the database instance, it requires SQL*Net or Net8 to establish its database connection and to perform operations such as record fetching. SQL*Net or Net8 is required for communication between servers and clients and between servers and other servers. This software makes the entire networked database environment appear as a single machine even though multiple machines and network protocols may be involved. Before delving into the architecture and management of SQL*Net/Net8, I’ll provide an introduction to this software’s role in a distributed database environment.
Distributed Processing
Although database transactions are performed on the database server, they are usually not initiated there. A transaction may originate from a mouseclick on a web page or a bar code scan at a grocery store or a button pushed on a Touch- Tone phone—to name a few examples. SQL*Net/Net8 coordinates the communications associated with distributed transactions by establishing connections between clients and servers (or servers and servers), transmitting data back and forth, and disconnecting cleanly. SQL*Net/Net8 is also responsible for translating any differences in character sets or data representations that ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.