A common table expression (CTE)
is a temporary named result set. CTE can be used within other DML statements like
SELECT, INSERT, UPDATE, and DELETE.
It is not stored as an object and
its lifetime is limited to the query.
It is defined using the WITH
statement as the following example shows:
WITH EmployeeName ( EmpID, FName, LName)
AS
(
SELECT EmpID, FName, LName FROM table
)
SELECT * FROM EmployeeName
A CTE can be used in place of a
view in some instances.
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