Introduction to Database System In a relation, the order of the rows matters. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products implemented the CODASYL DBTG model? IDMS dBase-II R:base DB2 IDMS dBase-II R:base DB2 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Primary keys Relationships Entities Attributes Primary keys Relationships Entities Attributes ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? All of these elimination of the data redundancy increased security ability to associate related data program/data independence All of these elimination of the data redundancy increased security ability to associate related data program/data independence ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file can be best described as None of these a random collection of data items an orderly collection of data items a single data item a general collection of data items None of these a random collection of data items an orderly collection of data items a single data item a general collection of data items ANSWER DOWNLOAD EXAMIANS APP
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