Introduction to Database System Which of the following is not a restriction for a table to be a relation? All of the entries in any column must be of the same kind. The columns must be ordered. No two rows in a table may be identical. The cells of the table must contain a single value. All of the entries in any column must be of the same kind. The columns must be ordered. No two rows in a table may be identical. The cells of the table must contain a single value. 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 an advantage of the data-base approach? All of these elimination of the data redundancy program/data independence increased security ability to associate related data All of these elimination of the data redundancy program/data independence increased security ability to associate related data ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Properties that describe the characteristics of entities are called: relationships. attributes. entities. identifiers. relationships. attributes. entities. identifiers. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Relations are categorized into normal forms according to the referential integrity constraints that they have. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: third normal form. domain/key normal form. second normal form. fourth normal form. third normal form. domain/key normal form. second normal form. fourth normal form. ANSWER DOWNLOAD EXAMIANS APP
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