Using a Common Table Expression Instead of a Derived Table

Here is a short video that shows how to convert those ugly derived table (SubQuery) queries into a common table expression to help clean up your TSQL code. This applies to Common Table Expressions on Microsoft SQL Server, and the recording comes from my Free SQL Query Training course.

Other CTE Related Posts:

• Writing Your First Common Table Expression with SQL Server
• Video: Writing Your First CTE with SQL Server
• Common Table Expressions – Terminating the Previous Statement
• CTE Scope
• Introduction to Recursive CTEs
• Recursive CTE for Dates In A Year
• Expanding on Recursive Dates CTE
• Multiple CTEs in a Query
• Nested CTEs
• Nested CTE’s Gone Wild – The Video
• CTE Data Paging
• CTE Data Paging in a Procedure
• Using a CTE in a Function to Split Up a Query String

• Using a CTE to Split a String Into Rows
• Can we use CTEs use in SSRS?
• CTE Hierarchy compared to the alternative
• Calculating Factorials with a Recursive CTE
• CTE – With An Insert Statement
• Fibonacci Sequence
• Generating a Tree Path with a CTE
• CTE Query Performance
• Multiple CTE’s in a single Query
• Recursive CTE’s

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