November 2001
Intermediate to advanced
496 pages
13h 51m
English
Content preview from Java Programming with Oracle JDBCBecome 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,
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Clients
In Part II, we’ll examine how to establish JDBC connections from four types of Oracle clients: an application, an applet, a servlet, and an internal client. But first, I need to define what I mean by client. Let’s begin that discussion by clarifying the term client/server.
What Is Client/Server?
Over the years, I’ve heard countless, sometimes convoluted, definitions for the term client/server. This has led to a great deal of confusion when discussing application architecture or platforms. So you have a consistent definition of the term client/server, I propose we use Oracle’s early definition for client/server and then define the four different types of clients we’ll encounter in this book.
It’s my opinion that Oracle is in large part responsible for the definition and success of the so-called client/server platform. From its beginnings, Oracle has been a client/server database. Here’s my definition of client/server:
Any time two different programs run in two separate operating-system processes in which one program requests services from the other, you have a client/server relationship.
In the early days, before the use of networks, Oracle applications consisted of the Oracle RDBMS running on one operating-system process as the server and one or more end users running their application programs in other operating-system processes. Even though this all took place on one physical computer, it’s still considered client/server. The Oracle RDBMS represents the server, and the end-user ...
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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.