Introduction to Database System An entity class is a collection of entities and is described by the structure of the entities in that class. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System It is more accurate to define a _____ as a variety of different record types that are treated as a single unit Flat File Table None of these Database Record Flat File Table None of these Database Record ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System After you _____ a record, many data management the environments require you to issue a command to save the changes you made. Sort key Update Delete Index Sort key Update Delete Index ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System To have a file hold a list, it is necessary to 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 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. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Entities Attributes Primary keys Relationships Entities Attributes Primary keys Relationships ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An operation that will increase the length of a list is Insert Look-up All of the listed here Modify Insert Look-up All of the listed here Modify ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS