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Clare Churcher’s Beginning SQL Queries is your guide to mastering the lingua franca of the database industry: the SQL language. Good knowledge of SQL is crucial to anyone working with databases, because it is with SQL that you retrieve data, manipulate data, and generate business results. Knowing how to write good queries is the foundation for all work done in SQL, and it is a foundation that Clare lays well in her book.
- Does not bore with syntax!
- Helps you learn the underlying concepts involved in querying a database, and from there the syntax is easy
- Provides exceptionally clear examples and explanations
- Is academically sound while being practical and approachable
- Write simple queries to extract data from a single table
- Understand relational algebra and calculus and why they are important
- Combine data from many tables into one business result
- Avoid pitfalls and traps such as Cartesian products and difficulties with null values
- Summarize large amounts of data for reporting purposes
- Apply set theory to the problems of manipulating data and generating reports
Beginning SQL Queries is aimed at intelligent laypeople who need to extract information from a database, and at developers and other IT professionals who are new to SQL. The book is especially useful for business intelligence analysts who must ask more complex questions of their database than their GUI–based reporting software supports. Such people might be business owners wanting to target specific customers, scientists and students needing to extract subsets of their research data, or end users wanting to make the best use of databases for their clubs and societies.
- Sales Rank: #1215300 in Books
- Brand: Brand: Apress
- Published on: 2008-04-15
- Original language: English
- Number of items: 1
- Dimensions: 9.25" h x .55" w x 7.25" l, 1.03 pounds
- Binding: Paperback
- 240 pages
- Used Book in Good Condition
From the Back Cover
Get started on mastering the one language binding the entire database industry. That language is SQL, and how it works is must-have knowledge for anyone involved with relational databases, and surprisingly also for anyone involved with NoSQL databases. SQL is universally used in querying and reporting on large data sets in order to generate knowledge to drive business decisions.
Good knowledge of SQL is crucial to anyone working with databases, because it is with SQL that you retrieve data, manipulate data, and generate business results. Every relational database supports SQL for its expressiveness in writing queries underlying reports and business intelligence dashboards. Knowing how to write good queries is the foundation for all work done in SQL, and it is a foundation that Clare Churcher's book, Beginning SQL Queries, 2nd Edition, lays well.
- Write simple queries to extract data from a single table
- Combine data from many tables into one business result using set operations
- Translate natural language questions into database queries providing meaningful information to the business
- Avoid errors associated with duplicated and null values
- Summarize data with amazing ease using the newly-added feature of window functions
- Tackle tricky queries with confidence that you are generating correct results
- Investigate and understand the effects of indexes on the efficiency of queries
About the Author
Clare Churcher is currently a senior lecturer in the Department of Applied Computing at Lincoln University, New Zealand. She holds a degree in physics with first class honors and completed a Ph.D in physics at the University of Canterbury, New Zealand. She has done postdoctoral research in the Cavendish Laboratory at the University of Cambridge, England.
Clare s research interests are in the management and visualization of data especially for scientific research. She has a background in database design, and has taught programming, analysis and design of information systems, and database management at undergraduate level, as well as software engineering and scientific visualization at post graduate level.
Most helpful customer reviews
4 of 4 people found the following review helpful.
Get a thorough foundation to practical problems
By Scott I. Lawley
There are at least a couple of ways to approach gaining skills in SQL. One is to learn a few superficial ideas that might make you dangerous around a database. The other is to gain foundational skills that give you what you need to move on to expert status. One might as well start with the latter approach as well as the former. I remember learning to alpine ski as a young person and being told that it is difficult to unlearn bad habits on the slopes. I believe the same idea is applicable to programming, particularly when it comes to relational databases.
You might as well understand what a database is, what it does, and why they work the way they do. Clare Churcher assumes that the reader of this book wants to start from a solid base with the intention of moving on with the skills they need to become a professional. I appreciate her approach. I don't feel as if Churcher is insulting my ability or intelligence. As it says on the cover, "A thoughtful approach to learning SQL that helps you think about language--and about your data--so that you can apply the right operations to the right problem to generate the right results, every time."
This title is worth your attention. Buy it, read it, and you'll have the skills you need.
2 of 2 people found the following review helpful.
Good Second Book
By frdatabase
This book is not for you if you are just starting to learn SQL. With just 218 pages, what would you expect the book would cover, considering it's also targeting the "profesional" level. The book needs to be around 500 pages for it to fulfil the mission.
If you are already familiar with SQL, then this book is most recommended. It will give you invaluable help about how to use SQL wisely and correctly. SQL is easy to learn, just like Chess. However, it is really tough to master. This book will get you started on your long journey to master SQL. The contents are still far away from the "professional" level because the author is just referring to a very simple golf club database. There is no reference for complicated queries, such as queries on hierrachical data or on pivoting data (such as the alternative to the TRANSFORM keyword in Access).
I'm giving 4 stars because the content of the book does not represent the title of the book. I wonder why the author wants to save the pages, whereas a book of 500 pages would certainly meet the purpose.
4 of 4 people found the following review helpful.
Beginning SQL Queries
By cyn
I bought this book based upon the publisher recommendations. I think
the book did very well to explain the logic behind Oracle SQL and its
inner workings. For me personally, it was not difficult to write
queries. Rather, it was more difficult to understand the logic
behind queries. Failing to understand the logic behind queries but
writing good queries can present a danger to your progress especially
in taking exams. This book helped to clarify those issues.
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