Introduction to Database System Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time? None of these report writer data manipulation language transaction log query language None of these report writer data manipulation language transaction log query language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A recursive relationship is a relationship between an archetype and an instance of that archetype. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a serious problem of file management systems? difficult to update lack of data independence program dependence All of these data redundancy difficult to update lack of data independence program dependence All of these data redundancy ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction? PACK ZIP COMMIT SAVE PACK ZIP COMMIT SAVE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: second normal form. third normal form. domain/key normal form. fourth normal form. second normal form. third normal form. domain/key normal form. fourth normal form. ANSWER DOWNLOAD EXAMIANS APP
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