At 10:42 a staff member accidentally ran a statement that deleted a whole table of exam results. The database keeps continuous transaction logs. What can the DBA do?
À 10 h 42, un agent a exécuté par erreur une instruction qui a supprimé toute une table de résultats d'examens. La base conserve des journaux de transactions continus. Que peut faire l'administrateur ?
Answers
ANothing, because deleted data can never be recovered once the statement has committedRien, car des données supprimées ne peuvent jamais être récupérées une fois l'instruction validée
BRestore a backup and replay the logs up to just before 10:42Restaurer une sauvegarde et rejouer les journaux jusqu'à juste avant 10 h 42
CRestart the server so the table comes backRedémarrer le serveur pour que la table réapparaisse
DRebuild the table's indexesReconstruire les index de la table
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