When designing a query for a report that requires aggregating large volumes of data and also needs to include specific row-level data, what SQL techniques would you employ?
- Apply ORDER BY
- Implement subqueries
- Use GROUP BY and JOIN
- Utilize the WHERE clause
To design a query for a report that involves aggregating large volumes of data and including specific row-level data, you would use the GROUP BY clause for aggregation and JOIN to connect multiple tables. This combination allows for both summarization and detailed row-level information.
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