Böcker av Itzik Ben-Gan

Comprehensive hands-on reference focuses on advanced querying techniques using Transact-SQL (T-SQL). For database developers & adminstrators. Includes code & table examples.

Exam Ref 70-761 Querying Data with Transact-SQL offers professional-level preparation that helps candidates maximise their exam performance and sharpen their skills on the job. It focuses on the specific areas of expertise modern database professionals need to succeed with T-SQL database queries. Exam Ref 70-762 Developing SQL Databases offers professional-level preparation that helps candidates maximise their exam performance and sharpen their skills on the job. It focuses on the specific areas of expertise modern database professionals need to succeed with SQL database development. These are the two exams necessary for the MCSA certification in SQL Server 2016 Database Development.

Query and modify data effectively with the latest T-SQL features Master Transact-SQL's fundamentals, and write correct, robust code for querying and modifying data with modern Microsoft data technologies, including SQL Server 2022, Azure SQL Database, and Azure SQL Managed Instance. Long-time Microsoft Data Platform MVP Itzik Ben-Gan explains key T-SQL concepts, helping you apply your knowledge with hands-on exercises. Ben-Gan first introduces T-SQLs theory and underlying logic, illuminating it as both a language and a way of thinking. Next, he walks through core topics, including logical query processing, single table queries, joins, subqueries, table expressions, set operators, data analysis, data modifications, temporal tables, and transactions and concurrency. Building on this foundation, you'll enhance your coding capabilities, from programmatic constructs to the powerful new SQL Graph. Throughout, Ben-Gan presents reusable T-SQL sample code that works in cloud, on-premises, and hybrid environments. Microsoft Data Platform MVP Itzik Ben-Gan helps you: Understand why T-SQL works as it does, so you can write better code Review relational theory elements and modern SQL Server architecture Create tables and defi ne data integrity Build single-table SELECT queries, multiple-table joins, and subqueries Utilize derived tables, Common Table Expressions, views, inline table-valued functions, and APPLY Make the most of UNION, INTERSECT, and EXCEPT set operators Perform data analysis with window functions, pivoting, grouping sets, and time series Insert, update, delete, and merge data Get started with system-versioned temporal tables Understand and apply transactions and concurrency, including concurrent user connections, locks, blocking, isolation levels, and more Use SQL Graph to model, create, modify, and query graph-based data Explore SQL Server programmable objects and programming capabilities Set up your environment, install sample databases, and fi nd even more help For IT Professionals and Consultants For T-SQL developers, DBAs, BI practitioners, data scientists, report writers, analysts, architects, and SQL Server power users For anyone else who needs to write queries or develop T-SQL code for SQL Server, Azure SQL Database, or Azure SQL Managed Instance

Use window functions to optimize your T-SQL queries for greater simplicity, elegance, and performance Discover the surprising power of window functions, and learn how to use them far more widely The most advanced coverage of T-SQL window functions — including new techniques invented by author Itzik Ben-Gan, one of the world's top T-SQL experts Covers T-SQL for all recent versions of Microsoft SQL Server (including 2019) and Microsoft Azure SQL Database — including important new window function optimizations Ideal for DBAs, developers, and anyone who uses T-SQL to solve business problems Most T-SQL developers recognize the value of window functions for data analysis calculation. But window functions can do far more than that, and optimizations in recent versions of SQL Server have made them more powerful than ever. In T-SQL Window Functions: For Data Analysis and Beyond, renowned T-SQL expert Itzik Ben-Gan introduces breakthrough techniques for using window functions to handle many common T-SQL querying tasks with unprecedented elegance and power.Ben-Gan first explains why window functions can often be a far better solution than traditional predicate-based approaches. Next, using extensive code examples, he guides you through each type of window function: Aggregate, Ranking, Distribution and Offset. You'll find detailed coverage of ordered set functions (including SQL Server 2017's STRING_AGG); plus an extensive section on optimization. The book concludes with roughly 100 pages of real T-SQL solutions using window function approaches — including techniques invented by the author and available in no other book.