Book Image

Mastering phpMyAdmin 3.4 for Effective MySQL Management

Book Image

Mastering phpMyAdmin 3.4 for Effective MySQL Management

Overview of this book

phpmyAdmin is one of the most widely used open source applications, which is written in PHP. phpMyAdmin supports a wide range of operations with MySQL. Currently, it can create and drop databases, create/drop/alter tables, delete/edit/add fields, execute any SQL statement, manage keys on fields, manage privileges, export data into various formats and is available in 52 languages.phpMyAdmin is a web-based front-end to manage MySQL databases and has been adopted by a number of Open-Source distributors.Mastering phpMyAdmin 3.4 for Effective MySQL Management is an easy-to-read, step-by-step practical guide that walks you through every facet of this legendary toolóphpMyAdminóand takes you a step ahead in taking full advantage of its potential. This book is filled with illustrative examples that will help you understand every phpMyAdmin feature in detail.This is the official guide to this popular MySQL web interface. It starts with installing and configuring phpMyAdmin, including the phpMyAdmin Configuration Storage, which is the key to its advanced features. This is followed by configuring authentication in phpMyAdmin and setting parameters that influence the interface as a whole.You will also learn some advanced features such as defining inter-table relations with the advanced Designer module. You will practice synchronizing databases on different servers and managing MySQL replication to improve performance and data security. Moreover, you will also store queries as bookmarks for their quick retrieval.In addition to it, this book helps you to learn new features introduced in version 3.4.x such as users' preferences, producing charts and the visual multi-table query builder.
Table of Contents (27 chapters)
Mastering phpMyAdmin 3.4 for Effective MySQL Management
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Deleting tracking information


A feature of the tracking system that might not be evident is that tracking information for all versions of a table, and thus for its whole lifespan, is still kept when the corresponding table is dropped. The reason is to keep the history information intact should we happen to create a table with the same name later on.

Let us do a copy of the author table (refer to Chapter 9 if needed), and name it author_copy. We then activate tracking on this new table. The last operation is to drop this author_copy table. Even if we no longer see it in the normal list of tables, it's different in the Tracking panel for database marc_book.

At this point we can go back in time, sort of, and see the tracking report and snapshot for the versions of this deleted table. If we really want to remove all evidence of the table ever having existed, then we can use the Drop link to destroy the tracking data also (after clicking on OK in the subsequent confirmation panel).