CTE with Subquery vs Temp Table

CTE with Subquery vs Temp Table is a SQL statement in the CTE (WITH) category. CTE vs Temporary Table comparison. CTE is cleaner and scoped to one query. Temp tables are better for multi-step ETL. The syntax is -- CTE: temporary within single query. Temp table: persists across queries in session.. It returns cTE vs Temp table comparison. A typical example: -- CTE (scoped, single query): WITH filtered AS ( SELECT * FROM employees WHERE salary > 50000 ) SELECT department, AVG(salary) FROM filtered GROUP BY department; -- Temp table (persists, multiple operations): CREATE TEMP TABLE filtered_emps AS SELECT * FROM employees WHERE salary > 50000; SELECT department, AVG(salary) FROM filtered_emps GROUP BY department; -- CTE advantages: no cleanup, optimizer can inline, no disk I/O -- Temp table advantages: can index,… A close relative is WITH (CTE), which common Table Expression — define a named temporary result set that can be referenced in the main query.