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- SELECT functies
- Commando's voor het ophalen van informatie
- Aantal rijen beperken met LIMIT
- Gegevens sorteren met ORDER BY
- Acht meest recente bestellingen
- Groepsfuncties
- DISTINCT – Unieke waarden
- COUNT() – Aantal rijen tellen
- COUNT(DISTINCT) – Unieke waarden tellen
- MIN() – Laagste waarde
- MAX() – Hoogste waarde
- SUM() – Totaal optellen
- AVG() – Gemiddelde berekenen