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 Each of data files has a _____ that describe the way the data is stored in the file. Database File structure Records Fields Database File structure Records Fields ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A compound key None of these uniquely identifies an item in a list is made up a several pieces of information both (a) and (b) is a combination of each unique key None of these uniquely identifies an item in a list is made up a several pieces of information both (a) and (b) is a combination of each unique key ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator? Instance entity Subtype entity Archetype entity Supertype entity Instance entity Subtype entity Archetype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System What software packages are commonly used for businesses that have to track extensive lists of clients and inventory? Data management packages Special purpose packages Custom made programs Single function application packages None of these Data management packages Special purpose packages Custom made programs Single function application packages None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A database has data and relationships. True False True False ANSWER DOWNLOAD EXAMIANS APP
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