Computer Beginner Guide

Oracle Database 10g is a significant upgrade from prior releases of Oracle. New features give developers, database administrators, and end users greater control over the storage, processing, and retrieval of their data. An Oracle database is a collection of data in one or more files. The database contains physical and logical structures. In the course of developing an application, you create structures such as tables and indexes to store rows and speed their retrieval. You can create synonyms for the object names, view objects in different databases (across database links), and you can restrict access to the objects. You can even use external tables to access files outside the database as if the rows in the files were rows in tables. An Oracle instance comprises a memory area called the System Global Area (SGA) and the background processes that interact between the SGA and the database files on disk. In an Oracle Real Application Cluster (RAC), more than one instance will...

We're now going to introduce you to basic database structure so that you have an understanding of databases. Adding MySQL to PHP and combining the applications for your dynamic web site is a great start. But, it helps tremendously to structure your database right. We'll give you a solid understanding of both database design and the language that's used to communicate with the database, SQL. The first step in setting up your database is to design how you'll store your data. Then, you'll learn how to add, view, and change data. Databases are a repository for information. They excel at managing and manipulating structured information. Structured information is a way to organize related pieces of information. The basic types of structured information, which can also be called data structures, include: Files Lists Arrays Records Trees Tables Each of these basic structures has many variations and allows for different operations to be performed on the data....