ITZIK BEN GAN T SQL FUNDAMENTALS PDF

Although this book is intended for beginners, it is not merely a set of procedures for readers to follow. It goes beyond the syntactical elements of T-SQL and explains the logic behind the language and its elements. Occasionally the book covers subjects that may be considered advanced for readers who are new to T-SQL; therefore, those sections are optional reading. The text will indicate when a section may be considered more advanced and is provided as optional reading. Many aspects of SQL are unique to the language and are very different from other programming languages.

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Although this book is intended for beginners, it is not merely a set of procedures for readers to follow. It goes beyond the syntactical elements of T-SQL and explains the logic behind the language and its elements. Occasionally, the book covers subjects that may be considered advanced for readers who are new to T-SQL; therefore, those sections are optional reading. The text will indicate when a section may be considered more advanced and is provided as optional reading.

Many aspects of SQL are unique to the language and are very different from other programming languages. This book helps you adopt the right state of mind and gain a true understanding of the language elements. You learn how to think in terms of sets and follow good SQL programming practices. The book is not version specific; it does, however, cover language elements that were introduced in recent versions of SQL Server, including SQL Server When I discuss language elements that were introduced recently, I specify the version in which they were added.

The book occasionally provides optional exercises that are more advanced. Those exercises are intended for readers who feel very comfortable with the material and want to challenge themselves with more difficult problems. The optional exercises for advanced readers are labeled as such. Assumptions: To get the most out of this book, you should have working experience with Windows and with applications based on Windows. You should also be familiar with basic concepts concerning relational database management systems.

This book covers fundamentals. It is mainly aimed at T-SQL practitioners with little or no experience. With that said, several readers of the previous edition of this book have mentioned that—even though they already had years of experience—they still found the book useful for filling gaps in their knowledge. Organization of This Book This book starts with both a theoretical background to T-SQL querying and programming in Chapter 1, laying the foundations for the rest of the book, and also coverage of creating tables and defining data integrity.

The book moves on to various aspects of querying and modifying data in Chapters 2 through 8, then to a discussion of concurrency and transactions in Chapter 9, and finally provides an overview of programmable objects in Chapter

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Fundamentals of table expressions, Part 1

Although this book is intended for beginners, it is not merely a set of procedures for readers to follow. It goes beyond the syntactical elements of T-SQL and explains the logic behind the language and its elements. Occasionally, the book covers subjects that may be considered advanced for readers who are new to T-SQL; therefore, those sections are optional reading. The text will indicate when a section may be considered more advanced and is provided as optional reading. Many aspects of SQL are unique to the language and are very different from other programming languages. This book helps you adopt the right state of mind and gain a true understanding of the language elements.

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I will mainly focus on four types of named table expressions, which are known in T-SQL as derived tables, common table expressions CTEs , views, and inline table-valued functions inline TVFs. I was inspired to write this series by my good friend, Grant Fritchey , whom I have known for many years. There are even suggestions to start a naming campaign in hope to see a future name change for this construct, at least in T-SQL. Some of the suggestions include query expression, inline view, statement-level view, and others. Perhaps this will come as a surprise to some, but I actually do find the use of the term table in common table expression as very appropriate. In fact, I find the use of the term table expression as appropriate. The same applies to what T-SQL calls derived tables the specific language construct as opposed to the general idea , views and inline TVFs.

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