Introduction to Database System Periodically adding, changing and deleting file records is called file restructuring renewing Updating upgrading restructuring renewing Updating upgrading ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity? ID-dependent entity Strong entity ID-independent entity Weak entity ID-dependent entity Strong entity ID-independent entity Weak entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? The columns must be ordered. All of the entries in any column must be of the same kind. The cells of the table must contain a single value. No two rows in a table may be identical. The columns must be ordered. All of the entries in any column must be of the same kind. The cells of the table must contain a single value. No two rows in a table may be identical. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entity instances are associated by relationship classes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in None of these a hashed file an indexed file a sequential file a tree file None of these a hashed file an indexed file a sequential file a tree file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to remove a stored function from the database? REMOVE FUNCTION DELETE FUNCTION ERASE FUNCTION DROP FUNCTION None of these REMOVE FUNCTION DELETE FUNCTION ERASE FUNCTION DROP FUNCTION None of these ANSWER DOWNLOAD EXAMIANS APP
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