Blog

A method that speeds query processing by running a query at the same time against several partitions of a table using multiprocessors is called:

In which type of file is multiple key retrieval not possible?

A trigger can be used as a security measure in which of the following ways?

The ________ states that no primary key attribute may be null.

The following statement is an example of: CREATE TABLE Customer_t ( CustNmbr number(11,0), CreditLimit number(6,2), CustStart date, CustEnd date, PERIOD for Custperiod(CustStart,CustEnd));

The following figure shows an example of:

The value a field will assume unless the user enters an explicit value for an instance of that field is called a:

The ________ rule states that an entity instance can simultaneously be a member of two (or more) subtypes.

A transaction is considered isolated when:

An integrity control supported by a DBMS is: