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 Helping people keep track of things is the purpose of a(n) ________ . table instance relationship database table instance relationship database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? None of the listed here Data field Characters Bits None of the listed here Data field Characters Bits ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "records". False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The DBMS that is most difficult to use is ________ . Microsoft's SQL Server IBM's DB2 Oracle Corporation's Oracle Microsoft's Access Microsoft's SQL Server IBM's DB2 Oracle Corporation's Oracle Microsoft's Access 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? ID-dependent entity Strong entity ID- independent entity Weak entity ID-dependent entity Strong entity ID- independent entity Weak entity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS