Introduction to Database System If attribute A determines both attributes B and C, then it is also true that: (B,C) → A → B → C → (B,C) → A → B → C → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a _____ a parent record type can be linked to one or more "child" record types, but a child record type can have only one parent. Relational database Distributed database Hierarchical database Network database Relational database Distributed database Hierarchical database Network database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains All of these the data types of all fields in all files the names of all fields in all files None of these the widths of all fields in all files All of these the data types of all fields in all files the names of all fields in all files None of these the widths of all fields in all files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the order of the columns does not matter. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System To have a file hold a list, it is necessary to All of the listed here decide which fields will be used as sort or index keys identify the name, width and type of the fields of each record. identify the records in the list All of the listed here decide which fields will be used as sort or index keys identify the name, width and type of the fields of each record. identify the records in the list ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to enable/disable a database trigger? All of the listed here ALTER TRIGGER MODIFY USER CHANGE USER All of the listed here ALTER TRIGGER MODIFY USER CHANGE USER ANSWER DOWNLOAD EXAMIANS APP