A mobile app screen shows only applicants' names and statuses, but its query is SELECT * on a table with 40 columns, including scanned documents. What should be changed?
Un écran d'application mobile n'affiche que les noms et statuts des candidats, mais sa requête est un SELECT * sur une table de 40 colonnes, dont des documents scannés. Que faut-il changer ?
Answers
ANothing, because the network always carries unlimited data at no costRien, car le réseau transporte toujours des données illimitées sans coût
BAdd more columns to the tableAjouter des colonnes à la table
CUse SELECT DISTINCT *Utiliser SELECT DISTINCT *
DSelect only the columns the screen needsNe sélectionner que les colonnes dont l'écran a besoin
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