Introduction to Database System A candidate key is a determinant that determines all the other columns is a relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
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 data manipulation language transaction log report writer query language None of these data manipulation language transaction log report writer query language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System 1:1, 1:N and N:M relationships are also known as HAS-A relationships. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The different classes of relations created by the technique for preventing modification anomalies are called: referential integrity constraints. normal forms. None of these functional dependencies. referential integrity constraints. normal forms. None of these functional dependencies. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains the widths of all fields in all files None of these the data types of all fields in all files the names of all fields in all files All of these the widths of all fields in all files None of these the data types of all fields in all files the names of all fields in all files All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Because it contains a description of its own structure, a database is considered to be ________ . metadata compatible described self-describing an application program metadata compatible described self-describing an application program ANSWER DOWNLOAD EXAMIANS APP
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