Beginning SQL Queries: From Novice to Professional (Paperback)

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

What you’ll learn:

- 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.

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