Introduction to Database System Relationship classes are associations between entity classes. True False True False 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? Supertype entity Archetype entity Subtype entity Instance entity Supertype entity Archetype entity Subtype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In an enterprise-class database system, business users interact directly with database applications, which directly access the database data. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to add a column/integrity constraint to a table INSERT COLUMN ALTER TABLE ADD COLUMN MODIFY TABLE INSERT COLUMN ALTER TABLE ADD COLUMN MODIFY TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file. Fields File structure Database Records Fields File structure Database Records ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity? Weak entity ID-dependent entity ID-independent entity Strong entity Weak entity ID-dependent entity ID-independent entity Strong entity ANSWER DOWNLOAD EXAMIANS APP
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