February 2024
Intermediate to advanced
456 pages
11h 28m
English
Content preview from Learn T-SQL Querying - Second Edition
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1
Understanding Query Processing
Transact-SQL, or T-SQL as it has become commonly known, is the language used to communicate with Microsoft SQL Server and Azure SQL Database. Any actions a user wishes to perform in a server, such as retrieving or modifying data in a database, creating objects, or changing server configurations, are all done via T-SQL commands.
The first step in learning to write efficient T-SQL queries is understanding how the SQL Database Engine processes and executes the query. The Query Processor is a component, therefore a noun, should not be all lowercased includes query compilation, query optimization, and query execution essentials: how does the SQL Database Engine compile an incoming T-SQL statement? How does the SQL ...
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