All Topics Data Retrieval Table Joins Advanced Topics Database Design Constraints Data Definition Language Data Manipulation Language

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Clear Filters
Intermediate

Aggregate Functions

⏱ 32 min 📚 Data Retrieval
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Intermediate

Grouping Data with GROUP BY

⏱ 38 min 📚 Data Retrieval
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Intermediate

Filtering Groups with HAVING

⏱ 20 min 📚 Data Retrieval
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