Introduction to Database System Which of the following is not characteristic of a relational database model? complex logical relationships records tables treelike structure complex logical relationships records tables treelike structure ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities can be associated with one another in which of the following? Entities Attributes Identifiers Relationships Entities Attributes Identifiers Relationships ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity. instance child parent subtype instance child parent subtype ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file contains several records. What does each record contain? Bytes Database Words Fields Bytes Database Words Fields ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A command that lets you change one or more fields in a record is All of these Insert Modify None of these Look-up All of these Insert Modify None of these Look-up ANSWER DOWNLOAD EXAMIANS APP
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