Introduction to Database System An indexing operation 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 sorts a file using a single key ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The distinguishable parts of a record are called None of these database files data fields None of these database files data fields ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A subtype entity is a special case of another entity called a supertype entity. False True False True 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 Supertype entity Archetype entity Subtype entity Instance entity Supertype entity Archetype entity Subtype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A logical schema describes how data is actually stored on disk is the entire database None of these All of these is a standard way of organizing information into accessible parts describes how data is actually stored on disk is the entire database None of these All of these is a standard way of organizing information into accessible parts ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational model uses some unfamiliar terminology. A tuple is equivalent to a record data base data item field record data base data item field ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS