With more than 4 million active installations, MySQL is the world's most popular open-source database. Known for its speed, high reliability, and ease of use, MySQL is rapidly becoming a low-cost alternative to database systems from Oracle, IBM, and Microsoft. MySQL AB intends to agressively improve the feature set and performance of MySQL, making it more suitable for enterprise-level applications and uses. The MySQL certification tests, announced in March 2003 and available at over 3,000 Pearson VUE testing centers, is a key component of this enterprise growth strategy, establishing a base level of skills for database users, administrators, and programmers. The MySQL Core Certification is aimed at the database professional who wants proof of his or her abilities in such fundamental areas as SQL, data entry and maintenance, and data extraction. The MySQL Certification test is designed for the advanced user who wants to prove his or her knowledge in such areas as database management, installation, security, disaster prevention, and optimization. Both tests are thoroughly covered in the MySQL Certification Study Guide. Written by Paul DuBois, the leading author of books on MySQL topics, and reviewed for technical accuracy by MySQL AB, the book is the fastest, most reliable way for MySQL users to prepare for either of the MySQL tests.