Introduction to Database System A functional dependency is always an equation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An indexing operation sorts a file using a single key None of the listed here establishes an index for a file sorts file using two keys sorts a file using a single key None of the listed here establishes an index for a file sorts file using two keys ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes All of these None of these record relationships records and files data elements All of these None of these record relationships records and files data elements ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select data in rows and column from one or more tables? None of these LIST SELECT CHOOSE BROWSE None of these LIST SELECT CHOOSE BROWSE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System One of the reasons why OODBMSs have not been widely used for business information systems is that OOP is obsolete. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents an actual occurrence of an associated generalized entity? Instance entity Supertype entity Archetype entity Subtype entity Instance entity Supertype entity Archetype entity Subtype entity ANSWER DOWNLOAD EXAMIANS APP
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