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Description

Common Table Expressions (CTEs), often simply called WITH clauses, are essentially just named subqueries. They are a fairly new feature of T-SQL; with CTEs, you can break a long query into smaller chunks, which makes it more readable. Unlike T-SQL subqueries, CTEs can be recursive, allowing the traversal of hierarchical models of enormous depth.

About the Common Table Expressions in T-SQL Course
This course will cover simple CTEs, nested CTEs, and recursive CTEs. You will learn how to manage your T-SQL queries with CTEs, how and when to nest CTEs, and how to use recursive CTEs to move through hierarchical data models.

This course is intended for intermediate users. We assume the user knows the basics of T-SQL, including:

  • How to select from a single table, including writing complex WHERE conditions
  • How to JOIN tables
  • How GROUP BY and HAVING work
  • How T-SQL subqueries work

What Are the Requirements?

  • A web browser
  • Knowledge of basic SQL, including JOINs and GROUP BY clauses

What Am I Going To Get from This T-SQL Course?

You will discover how to:
  • Understand and use basic Common Table Expressions
  • Split long T-SQL queries with simple and nested CTEs
  • Deploy recursive CTEs
  • Write recursive CTEs that traverse a hierarchical data model

Who Should Take This Course?

  • Beginning database analysts
  • Developers who want to keep their knowledge of T-SQL current
  • Students taking classes in relational databases
  • Anyone who wants to learn Common Table Expressions in T-SQL
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    One to Rule 'Em All

    Includes 41 courses Python Basics. Part 1, Python Basics. Part 2, Python Basics. Part 3, Python Data Structures in Practice, Built-in Algorithms in Python, Working with Strings in Python, SQL Basics, SQL Practice Set, SQL JOINs, Standard SQL Functions, Creating Basic SQL Reports, Window Functions, Revenue Trend Analysis in SQL, How to INSERT, UPDATE, and DELETE Data in SQL, Recursive Queries, Creating Tables in SQL, Introduction to R, Tidyverse, Data Visualization 101, Statistics 101, SQL Basics in MS SQL Server, How to Insert, Update, or Delete Data in MS SQL Server, Common Functions in MS SQL Server, Revenue Trend Analysis in SQL Server, Creating Basic SQL Reports in SQL Server, Window Functions in MS SQL Server, Recursive Queries in MS SQL Server, GROUP BY Extensions in MS SQL Server, Introduction to Python for Data Science, How to Read and Write CSV Files in Python, How to Read and Write JSON Files in Python, Lists and Functions in R, Data Manipulation in R, SQL Basics in PostgreSQL, PostgreSQL JOINs, SQL Practice Set in PostgreSQL, Window Functions in PostgreSQL, Recursive Queries in PostgreSQL, Writing User-Defined Functions in PostgreSQL, PostGIS, How to Read and Write Excel Files in Python

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    MS SQL Server Kit

    Includes 6 courses SQL Basics in MS SQL Server, How to Insert, Update, or Delete Data in MS SQL Server, Common Functions in MS SQL Server, Window Functions in MS SQL Server, Recursive Queries in MS SQL Server, GROUP BY Extensions in MS SQL Server

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    Table of contents

    Progress: 0% completed 0 of 112 exercises done

    1. Intro Quiz

    Test your knowledge of T-SQL

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    2. CTE syntax

    Your first encounter with Common Table Expressions

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    3. Nested CTEs

    You'll learn how to use nested CTEs

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    4. Recursive CTEs

    You'll learn what recursion is and how to use it in T-SQL queries

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    5. CTEs with INSERT, DELETE, and UPDATE

    You'll learn how to use INSERT, DELETE, and UPDATE statements with CTEs

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    6. Final Quiz

    Test your knowledge in this final quiz

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