goupee.vn goupee.com fb.com/goupee.vn www.allitebooks.com goupee.vn goupee.com fb.com/goupee.vn www.allitebooks.com goupee.vn Learning MySQL and MariaDB Russell J.T. Dyer Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo fb.com/goupee.vn www.allitebooks.com goupee.com goupee.vn goupee.com To Fortunata Serio, my mother, who gave me life, taught me to be kind and loving, and to speak — which is a precursor to being a writer. And to Andrew Gambos, who had the thankless job of being my stepfather, but taught me how to assert myself in life and in my career. fb.com/goupee.vn www.allitebooks.com goupee.vn goupee.com fb.com/goupee.vn www.allitebooks.com goupee.vn Special Upgrade Offer goupee.com If you purchased this ebook directly from oreilly.com, you have the following benefits: DRM-free ebooks — use your ebooks across devices without restrictions or limitations Multiple formats — use on your laptop, tablet, or phone Lifetime access, with free updates Dropbox syncing — your files, anywhere If you purchased this ebook from another retailer, you can upgrade your ebook to take advantage of all these benefits for just $4.99. Click here to access your ebook upgrade. Please note that upgrade offers are not available from sample content. fb.com/goupee.vn www.allitebooks.com goupee.vn goupee.com fb.com/goupee.vn www.allitebooks.com goupee.vn goupee.com Foreword Before you begin to read the main chapters of this book to learn about MySQL and MariaDB, it might be useful to understand what we were trying to accomplish when we first created MySQL about 20 years ago and MariaDB about 5 years ago, as well as the current state of these database systems and my expectations of them going forward. And I’d like to encourage you in your decision to learn these database systems and to assure you that they will be in use for a long time and that you will benefit from the time and energy you put into reading this book and learning what it has

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