Q. The property (or set of properties) that uniquely defines each row in a table is called the:

View solution

Q. The separation of the data definition from the program is known as:

View solution

Q. In the client / server model, the database:

View solution

Q. The traditional storage of data that is organized by customer, stored in separate folders in filing cabinets is an example of what type of ‘database’ system?

View solution

Q. The database design that consists of multiple tables that are linked together through matching data stored in each table is called

View solution

Q. The association role defines:

View solution

Q. The purpose of an N-Ary association is:

View solution

Q. Bitmap indices are a specialized type of index designed for easy querying on ___________

View solution

Q. A _______ on the attribute A of relation r consists of one bitmap for each value that A can take.

View solution

Q. SELECT *
FROM r
WHERE gender = ’f’ AND income level = ’L2’;

In this selection, we fetch the bitmaps for gender value f and the bitmap for income level value L2, and perform an ________ of the two bitmaps.

View solution

Q. To identify the deleted records we use the ______________

View solution

Q. Bitmaps can be used as a compressed storage mechanism at the leaf nodes of ________ for those values that occur very frequently.

View solution

Q. Bitmaps can be combined with regular B+-tree indices for relations where a few attribute values are extremely common, and other values also occur, but much less frequently.

View solution

Q. In a B+-tree index ______ for each value we would normally maintain a list of all records with that value for the indexed attribute.

View solution

Q. If an index is _________________ the metadata and statistics continue to exists

View solution