Q. When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?

View solution

Q. Which of the following is not one of the three ways to classify an action assertion?

View solution

Q. An action assertion must include which of the following?

View solution

Q. Which of the following statements concerning business rules is true?

View solution

Q. Which one of the following symbols is not used in an ERD?

View solution

Q. Specialization is which of the following processes?

View solution

Q. A subtype discriminator is which of the following?

View solution

Q. A supertype/subtype hierarchy is which of the following?

View solution

Q. A supertype/subtype hierarchy has which of the following features?

View solution

Q. In a relational schema, each tuple is divided into fields called

View solution

Q. A _____ means that one record in a particular record type may be related to more than one record of another record type.

View solution

Q. A _____ means that one record in a particular record type is related to only one record of another record type.

View solution

Q. The way a particular application views the data from the data base that the application uses is a :

View solution

Q. A scheme describes

View solution

Q. A _____ means that one record in a particular record type can be related to many records in another record type and vice-versa.

View solution

Q. Which of the following situation requires the use of ID-dependent entities?

View solution

Q. A foreign key is:

View solution

Q. Which of the following columns is(are) are required in a table?

View solution

Q. In a 1:1 relationship, the foreign key is placed in:

View solution

Q. Which of the following column properties would be used to specify that cells in a column must be immediately filled with a monetary value of $10,000?

View solution