Question

What is the primary purpose of the UNION ALL operator in SQL?

Q: Answer-What is the primary purpose of the UNION ALL operator in SQL?

The UNION ALL operator in SQL is used to combine the results of two or more queries into a single result set. Unlike the UNION operator, which removes duplicate rows from the final result set, UNION ALL includes all rows, regardless of duplication. This makes UNION ALL useful when you want to retain all the data from the combined queries, including duplicates.