Introduction to Database System An attribute is a(n): key of a table. two dimensional table. column of a table. row of a table. key of a table. two dimensional table. column of a table. row of a table. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System All instances of an entity class have the same attributes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Each of data files has a _____ that describe the way the data is stored in the file. Fields File structure Database Records Fields File structure Database Records ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The degree of a relationship refers to the number of entity classes in the relationship. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes record relationships data elements None of these records and files All of these record relationships data elements None of these records and files All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Keys made up of two or more attributes are called composite keys. True False True False ANSWER DOWNLOAD EXAMIANS APP
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