Introduction to Database System Keys made up of two or more attributes are called composite keys. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Supertype entity Instance entity Archetype entity Subtype entity Supertype entity Instance entity Archetype entity Subtype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The index consists of both (a) and (b) None of these pointers to the master list All of these a list of keys both (a) and (b) None of these pointers to the master list All of these a list of keys ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to remove a stored function from the database? DROP FUNCTION DELETE FUNCTION ERASE FUNCTION None of these REMOVE FUNCTION DROP FUNCTION DELETE FUNCTION ERASE FUNCTION None of these REMOVE FUNCTION ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? No two rows in a table may be identical. The cells of the table must contain a single value. All of the entries in any column must be of the same kind. The columns must be ordered. No two rows in a table may be identical. The cells of the table must contain a single value. All of the entries in any column must be of the same kind. The columns must be ordered. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System One data dictionary software package is called ACCESS None of these TOTAL DB/DC dictionary any of the above ACCESS None of these TOTAL DB/DC dictionary any of the above ANSWER DOWNLOAD EXAMIANS APP
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