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Practical SQL is an approachable and fast-paced guide to SQL (Structured Query Language), the standard programming language for defining, organizing, and exploring data in relational databases. The book focuses on using SQL to find the story your data tells, with the popular open-source database PostgreSQL and the pgAdmin interface as its primary tools.
You’ll first cover the fundamentals of databases and the SQL language, then build skills by analyzing data from the U.S. Census and other federal and state government agencies. With exercises and real-world examples in each chapter, this book will teach even those who have never programmed before all the tools necessary to build powerful databases and access information quickly and efficiently.
You’ll learn how to:
-Create databases and related tables using your own data
-Define the right data types for your information
-Aggregate, sort, and filter data to find patterns
-Use basic math and advanced statistical functions
-Identify errors in data and clean them up
-Import and export data using delimited text files
-Write queries for geographic information systems (GIS)
-Create advanced queries and automate tasks
Learning SQL doesn’t have to be dry and complicated. Practical SQL delivers clear examples with an easy-to-follow approach to teach you the tools you need to build and manage your own databases.
This book uses PostgreSQL, but the SQL syntax is applicable to many database applications, including Microsoft SQL Server and MySQL. |
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Adobe Photoshop Unmasked: The Art and Science of Selections, Layers, and PathsAs the feature list of Adobe Photoshop continues to grow, even users with years of experience can feel overwhelmed by the many tools and methods for selecting or isolating parts of an image. Layers, channels, paths, clipping masks, layer masks, vector masks, the Pen tool, Magic Wand, and so on вД all let users work on specific regions... | | Visual Studio 2010 Best Practices
When you are developing on the Microsoft platform, Visual Studio 2010
offers you a range of powerful tools and makes the entire process easier and
faster. After learning it, if you think that you can sit back and relax, you cannot
be further away from truth. To beat the crowd, you need to be better than others,
learn tips and... | | |
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