tailieunhanh - Oracle Unleashed- P20

Oracle Unleashed- P20: When I first started using Oracle many years ago, it was possible to know the database and the tools available. With the rash of recent releases of different options for the database and the spate of new tools, only people who wear their underpants over their trousers will be able to know everything there is to know about the Oracle products. | Previo Page TOC Next Page Home 53 o Networking Quick and Dirty Introduction to Networking Overview of Oracle Networking Host Terminal Connections Client Server Connections Database-to-Database Connections SQL Net Version 1 SQL Net Version 2 . ODBC Versus OLE Other Middleware Vendors Some Sample Configurations Network Development Tips Summary 53 Networking Welcome to the world of database networking. Some people come rushing to this world based upon promises that they have heard about magnificent performance or the capability to use their graphical user interfaces on personal computers for applications that access large corporate databases in a friendly and efficient manner. Others however are dragged into this world kicking and screaming. The architectures are so complex. You have to learn all those networking terms and it takes forever for your support staff to get all those drivers loaded correctly so that you can access your databases. Finally you have to rely on the network administrators in addition to the system administrators to keep the system up so that you can access your data. The good news is that client server and networking to access databases has moved beyond the point of radical new technology and into the realm of the stable production environment. Sure you have to pay some dues to learn the new terms and understand what hardware and software components you are using to get your information. I for one never want to go back to the days of the dumb terminal when it comes time to write a production application. Very few business users can be wowed by the traditional terminal interface where they have to learn to navigate through a series of menus or enter commands at the command line. This chapter has an ambitious goal of providing you an understanding of networking as it relates to Oracle databases. Because many users are inexperienced in modern networking environments using a Novell server to print your documents does not count the terms serve as an

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