Which is the best practice when filtering rows on a simple column value for a grouped report?

Problem Statement

Explanation

Row-level predicates belong in WHERE. That reduces data before grouping and often yields simpler plans. Reserve HAVING for predicates that depend on aggregates.

Code Solution

SolutionRead Only

SELECT store_id, SUM(total) FROM sales
WHERE region='APAC'
GROUP BY store_id;

Practice Sets

This question appears in the following practice sets:

Filtering, Grouping & Aggregations

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Which is the best practice when filtering rows on a simple column value for a grouped report?

Problem Statement

Explanation

Code Solution

Practice Sets

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Master Interviews Anywhere, Anytime

Which is the best practice when filtering rows on a simple column value for a grouped report?

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