Introduction to Database System A database design may be based on existing data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier? Weak entity ID-dependent entity ID- independent entity Strong entity Weak entity ID-dependent entity ID- independent entity Strong entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An on-line commercial site such as Amazon.com is an example of a(n) ________ . e-commerce database application single-user database application multiuser database application data mining database application e-commerce database application single-user database application multiuser database application data mining database application ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A list in alphabetical order is in descending order is in ascending order None of these both (b) and (c) is the result of a sort operation is in descending order is in ascending order None of these both (b) and (c) is the result of a sort operation ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A number of related records that are treated as a unit is called batch data file field batch data file field 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. fourth normal form. third normal form. domain/key normal form. second normal form. fourth normal form. third normal form. domain/key normal form. ANSWER DOWNLOAD EXAMIANS APP
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