What does a Common Table Expression (CTE) primarily provide?

Problem Statement

Explanation

A CTE created with WITH gives a readable name to an intermediate query and exists only for that statement. Many engines inline it like a subquery. CTEs are about clarity and stepwise logic. Performance depends on the optimizer and data shape, not the syntax alone.

Code Solution

SolutionRead Only

WITH recent AS (
  SELECT * FROM orders WHERE created_at >= CURRENT_DATE - INTERVAL '30 days'
)
SELECT * FROM recent WHERE status = 'PAID';

Practice Sets

This question appears in the following practice sets:

CTEs, Subqueries & Advanced Joins

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What does a Common Table Expression (CTE) primarily provide?

Problem Statement

Explanation

Code Solution

Practice Sets

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What does a Common Table Expression (CTE) primarily provide?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Which SQL statement retrieves all columns and rows from a table named employees?

Which clause filters rows before aggregation and affects which rows are grouped?

What is the default sort order when ORDER BY is used without ASC or DESC?

Which construct is commonly used to paginate results in SQL engines like Postgres and MySQL?

Which predicate correctly checks for missing values in standard SQL?

More from SQL & Databases

Master Interviews
Anywhere, Anytime