Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? 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 is a standard way of organizing information into accessible parts None of these describes how data is actually stored on disk is the entire database All of these is a standard way of organizing information into accessible parts None of these describes how data is actually stored on disk is the entire database All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: domain/key normal form. second normal form. fourth normal form. third normal form. domain/key normal form. second normal form. fourth normal form. third normal form. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if they have a field in common they have a row in common they have no records with the same value in the common field both (b) and (c) None of these they have a field in common they have a row in common they have no records with the same value in the common field both (b) and (c) None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? SELECT ALL FROM BOOK None of these SELECT SUB FROM BOOK All of these SELECT DISTINCT SUB FROM BOOK SELECT ALL FROM BOOK None of these SELECT SUB FROM BOOK All of these SELECT DISTINCT SUB FROM BOOK ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, GRANT command is used to grant system privileges, roles, and object privileges to uses and roles allow user to access databases allow user to create databases None of the listed here grant system privileges, roles, and object privileges to uses and roles allow user to access databases allow user to create databases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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