Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: second normal form. fourth normal form. domain/key normal form. third normal form. second normal form. fourth normal form. domain/key normal form. third normal form. 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. Records Fields File structure Database Records Fields File structure Database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity? Instance entity Archetype entity Supertype entity Subtype entity Instance entity Archetype entity Supertype entity Subtype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, the CREATE TABLE is used to create a table, defining its columns, integrity constrains, and storage allocation All of these to change a table's storage characteristics to redefine a column to add a column/integrity constraint to a table to create a table, defining its columns, integrity constrains, and storage allocation All of these to change a table's storage characteristics to redefine a column to add a column/integrity constraint to a table ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? All of these SELECT DISTINCT SUB FROM BOOK SELECT SUB FROM BOOK SELECT ALL FROM BOOK None of these All of these SELECT DISTINCT SUB FROM BOOK SELECT SUB FROM BOOK SELECT ALL FROM BOOK None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to changes data in a table? INSERT BROWSE APPEND UPDATE INSERT BROWSE APPEND UPDATE ANSWER DOWNLOAD EXAMIANS APP
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