Managing Multiuser Databases Resource locking is a process to prevent multiple applications from obtaining copies of the same record when the record is about to be changed. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following refers to a cursor type where changes of any type and from any source are visible? Static Dynamic Forward only Keyset Static Dynamic Forward only Keyset ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction? Nonrepeatable read Phantom read Dirty read Consistent read Nonrepeatable read Phantom read Dirty read Consistent read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases The size of a lock is called: shared lock exclusive lock lock granularity implicit lock shared lock exclusive lock lock granularity implicit lock ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases Which of the following occurs when one transaction reads a changed record that has not been committed to the database? Nonrepeatable read Dirty read Consistent read Phantom read Nonrepeatable read Dirty read Consistent read Phantom read ANSWER DOWNLOAD EXAMIANS APP
Managing Multiuser Databases A transaction for which all committed changes are permanent is called: isolated. atomic. consistent. durable. isolated. atomic. consistent. durable. ANSWER DOWNLOAD EXAMIANS APP
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