Managing Multiuser Databases Locks placed by command are called ________ . exclusive locks shared locks implicit locks explicit locks exclusive locks shared locks implicit locks explicit locks ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following locks the item from change but not from read? Explicit lock Implicit lock Shared lock Exclusive lock Explicit lock Implicit lock Shared lock Exclusive lock 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? Phantom read Consistent read Nonrepeatable read Dirty read Phantom read Consistent read Nonrepeatable read Dirty read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A transaction for which all committed changes are permanent is called: atomic. consistent. durable. isolated. atomic. consistent. durable. isolated. ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed. Read uncommitted Repeatable read Serializable Read committed Read uncommitted Repeatable read Serializable Read committed ANSWER DOWNLOAD EXAMIANS APP
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