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