By Fançois Bancilhon; Peter Buneman (eds.)

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Table 2-2 shows a typical table from a database. TABLE 2-2 An Example Database Table FORENAME SURNAME Craig Tucker Lee Jordan Every table consists of rows and columns. In database parlance, columns are referred to as fields, and rows are referred to as records. When you create database tables, you define what kinds of information you want to store in your fields (the columns), and then each entry in the database is stored as a record (the rows). An Example: Product Database In this example, you will create a database that stores product information.

Some of the most common are covered in Table 2-1. TABLE 2-1 Math Operators in PHP OPERATOR DESCRIPTION EXAMPLE + Addition $total = $cds + $tapes; – Subtraction $total = $cds – $tapes; * Multiplication $total = $cds * $tapes; / Division $total = $cds / $tapes; One of the great benefits of PHP has been its batteries-included approach to functionality. To help solve a range of problems, a number of facilities and functions are built right into PHP. For example, some numbers don’t divide easily. Imagine that you need to split a range of news stories across a number of different pages.

The majority of these boxes will be irrelevant in this simple example. Before you create the fields, it’s necessary to discuss the concepts of types in MySQL. In any kind of database programming, the kind of information you store inside the database has different characteristics depending on what type of information it is. 45), more memory is required to store this type of information than storing an integer (a whole number, such as 35). In addition to this, different numbers of have different ranges.

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