May 2020
Beginner
564 pages
14h 9m
English
Content preview from Learn SQL Database Programming
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Chapter 10
- To group rows that have the same values into summary rows.
- Use the WHERE clause before the GROUP BY clause.
- They wind up returning the same results.
- Use ORDER BY clause after the GROUP BY clause.
- ROLLUP.
- To filter the GROUP BY results.
- Yes.
- SELECT FROM/JOIN WHERE GROUP BY HAVING ORDER BY LIMIT
- FROM/JOIN WHERE GROUP BY HAVING SELECT ORDER BY LIMIT
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