Here's the dirty little secret about tablets and the iPad: they are not laptops.
Once the genealogist accepts that truth they can untether themselves from the restraints of that mindset and embrace what I call the "Tablet Mindset." And in Turn Your iPad into a Genealogy Powerhouse you will learn how to unleash your iPad's potential for family history on-the-go!
These pages are packed with the tools you need to get the most out your tablet:
• An in depth look at over 65 apps that are ideal for the genealogist
• 32 Fabulous Tips and Tricks that will make you a power user
• See it for yourself with recommended online videos
Do you have a tablet other than an iPad?
No problem! Comparable apps available in Google Play are included. And the Tips and Tricks section will give you clues as to features to look for on your brand of tablet.
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By O'Reilly Media, Inc.
Mar 4, 2013
SQL and Relational Theory: How to Write Accurate SQL Code (2012) SQL is full of difficulties and traps for the unwary. You can avoid them if you understand relational theory, but only if you know how to put the theory into practice. In this insightful book, author C.J. Date explains relational theory in depth, and demonstrates through numerous examples and exercises how you can apply it directly to your use of SQL. This second edition includes new material on recursive queries, “missing information” without nulls, new update operators, and topics such as aggregate operators, grouping and ungrouping, and view updating. If you have a modest-to-advanced background in SQL, you’ll learn how to deal with a host of common SQL dilemmas. Why is proper column naming so important? Nulls in your database are causing you to get wrong answers. Why? What can you do about it? Is it possible to write an SQL query to find employees who have never been in the same department for more than six months at... More > a time? SQL supports “quantified comparisons,” but they’re better avoided. Why? How do you avoid them? Constraints are crucially important, but most SQL products don’t support them properly. What can you do to resolve this situation? Database theory and practice have evolved since the relational model was developed more than 40 years ago. SQL and Relational Theory draws on decades of research to present the most up-to-date treatment of SQL available. C.J. Date has a stature that is unique within the database industry. A prolific writer well known for the bestselling textbook An Introduction to Database Systems (Addison-Wesley), he has an exceptionally clear style when writing about complex principles and theory.< Less
