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Foundations of Querying in Transact-SQL

Learn the fundamental principles that defines the Transact-SQL language and write better, solid queries


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Description

Transact-SQL is the main language used to manage and manipulate data in Microsoft SQL Server. This course lays the foundation for querying data by using T-SQL. The course describes the roots of the language, terminology, and the mindset you need to adopt when writing T-SQL code. It then moves on to describe one of the most important concepts you need to know about the language: logical query processing This course introduces you to the core mathematical concepts (sets and predicate logic) and relational model on which the standard SQL language is built and hence that also defines the Microsoft Transact-SQL language. You will learn the difference between the logical and physical processing of Transact-SQL. You will get an understanding of the logical processing phases of queries. To receive the most from this course you need the following pre-requisites:

1. An understanding of basic database concepts

2. Experience working with SQL Server Management Studio (SSMS)

3. Some experience writing T-SQL code

4. Access to SQL Server instance (2016 and above) with the sample database AcotexDB installed.

We begin with a look at the evolution of T-SQL and discuss the relationship between the mathematical concepts that control the standard SQL language and how thse affect the T-SQL language and the deviation of the T-SQL from the standard SQL and how Microsoft provides the tools in the language to handle these deviations.

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