Managing Multiuser Databases Locks placed by command are called ________ . explicit locks exclusive locks implicit locks shared locks explicit locks exclusive locks implicit locks shared locks ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Locks placed by command are implicit locks. True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A transaction is a series of actions to be taken on the database so that either all of them are performed successfully or none of them are performed at all. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following occurs when a transaction rereads data and finds new rows that were inserted by a command transaction since the prior read? Nonrepeatable read Dirty read Phantom read Consistent read Nonrepeatable read Dirty read Phantom read Consistent read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The overall responsibility of the DBA is to facilitate the development and use of the database. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following allows dirty reads, nonrepeatable reads and phantom reads to occur? Serializable Read committed Read uncommitted Repeatable read Serializable Read committed Read uncommitted Repeatable read ANSWER DOWNLOAD EXAMIANS APP
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