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InformaticaActief - SQL compact SELECT functies
0/120 of 12 activities solved
  1. Commando's voor het ophalen van informatie Not yet read
  2. Aantal rijen beperken met LIMIT Not yet solved
  3. Gegevens sorteren met ORDER BY Not yet solved
  4. Acht meest recente bestellingen Not yet solved
  5. Groepsfuncties Not yet read
  6. DISTINCT – Unieke waarden Not yet solved
  7. COUNT() – Aantal rijen tellen Not yet solved
  8. COUNT(DISTINCT) – Unieke waarden tellen Not yet solved
  9. MIN() – Laagste waarde Not yet solved
  10. MAX() – Hoogste waarde Not yet solved
  11. SUM() – Totaal optellen Not yet solved
  12. AVG() – Gemiddelde berekenen Not yet solved
Next series SELECT functies verdieping
SELECT functies 0/120 of 12 activities solved
  1. Commando's voor het ophalen van informatie Not yet read
  2. Aantal rijen beperken met LIMIT Not yet solved
  3. Gegevens sorteren met ORDER BY Not yet solved
  4. Acht meest recente bestellingen Not yet solved
  5. Groepsfuncties Not yet read
  6. DISTINCT – Unieke waarden Not yet solved
  7. COUNT() – Aantal rijen tellen Not yet solved
  8. COUNT(DISTINCT) – Unieke waarden tellen Not yet solved
  9. MIN() – Laagste waarde Not yet solved
  10. MAX() – Hoogste waarde Not yet solved
  11. SUM() – Totaal optellen Not yet solved
  12. AVG() – Gemiddelde berekenen Not yet solved
Next series SELECT functies verdieping
SELECT functies

Commando's voor het ophalen van informatie

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