The main concept of relational databases was published in 1970 by:
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One major advantage of the outer join is that:
One major advantage of the outer join is that:
An integrity control supported by a DBMS is:
An integrity control supported by a DBMS is:
A student can attend five classes, each with a different pro…
A student can attend five classes, each with a different professor. Each professor has 30 students. The relationship of students to professors is a ________ relationship.
The actions that must be taken to ensure data integrity is m…
The actions that must be taken to ensure data integrity is maintained during multiple simultaneous transactions are called ________ actions.
INSERT INTO is an example of ________ code.
INSERT INTO is an example of ________ code.
Requiring a CustomerID to exist in a Primary table before it…
Requiring a CustomerID to exist in a Primary table before it can exist in a foreign table is an example of:
Requiring a CustomerID to exist in a Primary table before it…
Requiring a CustomerID to exist in a Primary table before it can exist in a foreign table is an example of:
INSERT INTO is an example of ________ code.
INSERT INTO is an example of ________ code.
A student can attend five classes, each with a different pro…
A student can attend five classes, each with a different professor. Each professor has 30 students. The relationship of students to professors is a ________ relationship.