Learning SQL. Generate, Manipulate, and Retrieve Data

Аннотация

Each chapter presents a self-contained lesson on a key SQL concept or technique, with numerous illustrations and annotated examples. Exercises at the end of each chapter let you practice the skills you learn. With this book, you will. Move quickly through SQL basics and learn several advanced features Use SQL data statements to generate, manipulate, and retrieve data Create database objects, such as tables, indexes, and constraints, using SQL schema statements. Learn how data sets interact with queries, and understand the importance of subqueries. Convert and manipulate data with SQL's built-in functions, and use conditional logic in data statements. Knowledge of SQL is a must for interacting with data. With Learning SQL, you'll quickly learn how to put the power and flexibility of this language to work.