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Series overview

InformaticaActief - SQL compact

SELECT functies

  • Show all learning activity descriptions
Status Status Type Title
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

  Commando's voor het ophalen van informatie

Submit

  Aantal rijen beperken met LIMIT

Submit

  Gegevens sorteren met ORDER BY

Submit

  Acht meest recente bestellingen

Submit

  Groepsfuncties

Submit

  DISTINCT – Unieke waarden

Submit

  COUNT() – Aantal rijen tellen

Submit

  COUNT(DISTINCT) – Unieke waarden tellen

Submit

  MIN() – Laagste waarde

Submit

  MAX() – Hoogste waarde

Submit

  SUM() – Totaal optellen

Submit

  AVG() – Gemiddelde berekenen

Submit
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User manual Contact Status Privacy statement Terms and Conditions Your data Publications Dodona 26.08.28-15:57