Kevin Languedoc - Build iOS Database Apps with Swift and SQLite

SQLite

Kevin Languedoc

Build iOS Database Apps with Swift and SQLite

Kevin Languedoc

Montreal

C a n a d a

ISBN-13 (pbk): 978-1-4842-2231-7 ISBN-13 (electronic): 978-1-4842-2232-4 DOI 10.1007/978-1-4842-2232-4

Library of Congress Control Number: 2016958726

Copyright 2016 by Kevin Languedoc

This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed.

Trademarked names, logos, and images may appear in this book. Rather than use a trademark symbol with every occurrence of a trademarked name, logo, or image we use the names, logos, and images only in an editorial fashion and to the benefit of the trademark owner, with no intention of infringement of the trademark. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights.

While the advice and information in this book are believed to be true and accurate at the date of publication, neither the authors nor the editors nor the publisher can accept any legal responsibility for any errors or omissions that may be made. The publisher makes no warranty, express or implied, with respect to the material contained herein.

Managing Director: Welmoed Spahr

Lead Editor: Aaron Black

Technical Reviewer: Massimo Nardone

Editorial Board: Steve Anglin, Pramila Balan, Laura Berendson, Aaron Black, Louise Corrigan, Jonathan Gennick, Robert Hutchinson, Celestin Suresh John, Nikhil Karkal, James Markham, Susan McDermott, Matthew Moodie, Natalie Pao, Gwenan Spearing

Coordinating Editor: Jessica Vakili

Copy Editor: April Rondeau

Compositor: SPi Global

Indexer: SPi Global

Artist: SPi Global

Distributed to the book trade worldwide by Springer Science+Business Media New York, 233 Spring Street, 6th Floor, New York, NY 10013. Phone 1-800-SPRINGER, fax (201) 348-4505, e-mail orders-ny@springer-sbm.com , or visit www.springeronline.com . Apress Media, LLC is a California LLC and the sole member (owner) is Springer

Science + Business Media Finance Inc (SSBM Finance Inc). SSBM Finance Inc is a Delaware corporation. For information on translations, please e-mail rights@apress.com , or visit www.apress.com .

Apress and friends of ED books may be purchased in bulk for academic, corporate, or promotional use. eBook versions and licenses are also available for most titles. For more information, reference our Special Bulk SaleseBook Licensing web page at www.apress.com/bulk-sales . Any source code or other supplementary materials referenced by the author in this text are available to readers at www.apress.com . For detailed information about how to locate your books source code, go to

www.apress.com/source-code/ . Readers can also access source code at SpringerLink in the Supplementary

Material section for each chapter.

Printed on acid-free paper

I dedicate this book to my wife, Louisa, and my children, Patrick and Megan.

About the Author .....................................................................................................xv

About the Technical Reviewer ...............................................................................xvii

Acknowledgments ..................................................................................................xix

Preface ...................................................................................................................xxi

Chapter 1: Creating the Objective-C Wrapper ........................................................ 1

Chapter 2: Creating SQLite Databases ................................................................. 11

Chapter 3: Creating Databases During Runtime .................................................. 25

Chapter 4: Altering Databases and Other Features ............................................. 45

Chapter 5: Inserting Records ............................................................................... 63

Chapter 6: Selecting Records .............................................................................. 89

Chapter 7: Updating Records ............................................................................. 113

Chapter 8: Deleting Records .............................................................................. 131

Chapter 9: Searching for Records in SQLite ...................................................... 145

Chapter 10: Working with Multiple Databases .................................................. 161

Chapter 11: Backing Up SQLite Databases ........................................................ 175

Chapter 12: Analyzing SQLite Databases........................................................... 187

Index ..................................................................................................................... 197

About the Author .....................................................................................................xv

About the Technical Reviewer ...............................................................................xvii

Acknowledgments ..................................................................................................xix

Preface ...................................................................................................................xxi

Chapter 1: Creating the Objective-C Wrapper ........................................................ 1

Getting Started ................................................................................................................. 1

Creating the Swift iOS Project .......................................................................................... 2

Create the Db Mgr Project Structure ...................................................................................................... 3

Adding the SQLite 3 Library .................................................................................................................... 3

Creating the Bridge .......................................................................................................... 5

Creating the Bridge Header File.............................................................................................................. 5

Con guring the Swift Compiler .............................................................................................................. 7

Creating the Swift Wrapper Functions.............................................................................. 7

Add the DbMgrDAO Class ....................................................................................................................... 8