Introduction to Database System A tuple is a(n): row of a table. two dimensional table. key of a table. column of a table. row of a table. two dimensional table. key of a table. column of a table. ANSWER DOWNLOAD EXAMIANS APP
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 A multiple-form file management system lets you create a look-up form with an associated read-only password to prevent access by unauthorized users lets you define different forms for different operations None of these allow you to entry data in all the forms both (a) and (b) lets you create a look-up form with an associated read-only password to prevent access by unauthorized users lets you define different forms for different operations None of these allow you to entry data in all the forms both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following hardware components is the most important to the operation of a database management system? printer plotter high speed, large-capacity disk high-resolution video display printer plotter high speed, large-capacity disk high-resolution video display ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Given the functional dependency R → (S,T) , then it is also true that R → S. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? None of the listed here Characters Bits Data field None of the listed here Characters Bits Data field ANSWER DOWNLOAD EXAMIANS APP
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