CTE in SQL Server with EXAMPLE
A Common Table Expression also called CTE in short form, is a temporary named result set that you can reference within a SELECT, INSERT, UPDATE, or DELETE statement.
CTE is used to manipulate the complex subqueries data and is similar to a derived table, it is not stored as an object and lasts only for the duration of the query.
SYNTAX:
The CTE query starts with a “With” and is followed by the Expression Name. We will be using this expression name in our select query to display the result of our CTE Query and be writing our CTE query definition.
WITH expression_name [ ( column_name [,...n] ) ]
AS
( CTE_query_definition )
To view the CTE result we use a Select query with the CTE expression name.
Select [Column1,Column2,Column3 …..] from expression_name
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