Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to remove a stored function from the database? DELETE FUNCTION ERASE FUNCTION None of these DROP FUNCTION REMOVE FUNCTION DELETE FUNCTION ERASE FUNCTION None of these DROP FUNCTION 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. The columns must be ordered. All of the entries in any column must be of the same kind. No two rows in a table may be identical. The cells of the table must contain a single value. The columns must be ordered. All of the entries in any column must be of the same kind. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which language has recently become the de-facto standard for interfacing application programs with relational database system? SQL Oracle None of these 4GL dBASE SQL Oracle None of these 4GL dBASE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System It is more accurate to define a _____ as a variety of different record types that are treated as a single unit Table Record Database None of these Flat File Table Record Database None of these Flat File ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System What name is given to the collection of facts, items of information or data which are related in some way? Database Information tree Information provider Directory information Database Information tree Information provider Directory information ANSWER DOWNLOAD EXAMIANS APP
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