Searching 2 million applicant records by national ID number takes several seconds. What usually makes such lookups fast?
Rechercher dans 2 millions de dossiers de candidats par numéro d'identité nationale prend plusieurs secondes. Qu'est-ce qui rend généralement ces recherches rapides ?
Answers
AAdding more columns to the Applicants tableAjouter des colonnes à la table Applicants
BStoring the national ID as a floating-point numberStocker le numéro d'identité comme un nombre à virgule flottante
CAn index on the national ID columnUn index sur la colonne du numéro d'identité nationale
DRemoving the primary keySupprimer la clé primaire
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