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Table of Contents
1. General Information
2. MySQL Installation
3. Tutorial Introduction
4. Database Administration
5. MySQL Optimisation
6. MySQL Language Reference
7. MySQL Table Types
8. MySQL APIs
9. Extending MySQL

Chapter 1: General Information 3 shell> type a shell command here mysql> type a mysql command here Shell commands are shown using Bourne shell syntax. If you are using a csh-style shell, you may need to issue commands slightly dierently. For example, the sequence to set an environment variable and run a command looks like this in Bourne shell syntax: shell> VARNAME=value some_command For csh, you would execute the sequence like this: shell> setenv VARNAME value shell> some_command Often database, table, and column names must be substituted into commands. To indicate that such substitution is necessary, this manual uses db_name, tbl_name and col_name. For example, you might see a statement like this: mysql> SELECT col_name FROM db_name.tbl_name; This means that if you were to enter a similar statement, you would supply your own database, table, and column names, perhaps like this: mysql> SELECT author_name FROM biblio_db.author_list; SQL keywords are not case-sensitive and may be written in uppercase or lowercase. This manual uses uppercase. In syntax descriptions, square brackets (`[' and `]') are used to indicate optional words or clauses. For example, in the following statement, IF EXISTS is optional: DROP TABLE [IF EXISTS] tbl_name When a syntax element consists of a number of alternatives, the alternatives are separated by vertical bars (`|'). When one member from a set of choices may be chosen, the alternatives are listed within square brackets (`[' and `]'): TRIM([[BOTH | LEADING | TRAILING] [remstr] FROM] str) When one member from a set of choices must be chosen, the alternatives are listed within braces (`{' and `}'): {DESCRIBE | DESC} tbl_name {col_name | wild} 1.2 What Is MySQL? MySQL, the most popular Open Source SQL database, is developed and provided by MySQL AB. MySQL AB is a commercial company that builds its business providing services around the MySQL database. See Section 1.3 [What is MySQL AB], page 11. The MySQL web site (http://www.mysql.com/) provides the latest information about MySQL software and MySQL AB. MySQL is a database management system. A database is a structured collection of data. It may be anything from a simple shopping list to a picture gallery or the vast amounts of information in a corpo- rate network. To add, access, and process data stored in a computer database, you need a database management system such as MySQL Server. Since com- puters are very good at handling large amounts of data, database management

MySQL Reference Manual

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