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 In SQL, GRANT command is used to None of the listed here allow user to create databases grant system privileges, roles, and object privileges to uses and roles allow user to access databases None of the listed here allow user to create databases grant system privileges, roles, and object privileges to uses and roles allow user to access databases ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? increased security All of these ability to associate related data program/data independence elimination of the data redundancy increased security All of these ability to associate related data program/data independence elimination of the data redundancy ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational database model was created by E.F. Codd. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes All of these records and files None of these record relationships data elements All of these records and files None of these record relationships data elements ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is true of a network structure? It is conceptually simple It allows a many-to-many relationship It is a physical representation of the data It will be the dominant data base of the future It is conceptually simple It allows a many-to-many relationship It is a physical representation of the data It will be the dominant data base of the future ANSWER DOWNLOAD EXAMIANS APP
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