Introduction to Database System In which of the following is a single-entity instance of one type related to many entity instances of another type? Many-to-Many Relationship Composite Relationship One-to-Many Relationship One-to-One Relationship Many-to-Many Relationship Composite Relationship One-to-Many Relationship One-to-One Relationship 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 None of these Insert Look-up Modify All of these None of these Insert Look-up Modify ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities of a given type are grouped into a(n): ER database. attribute. entity class. ER database. attribute. entity class. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following indicates the minimum number of entities that must be involved in a relationship? Maximum cardinality Greater Entity Count (GEC) ERD Minimum cardinality Maximum cardinality Greater Entity Count (GEC) ERD Minimum cardinality ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows None of these All of these SELECT DISTINCT SELECT UNIQUE SELECT DIFFERENT None of these All of these SELECT DISTINCT SELECT UNIQUE SELECT DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time? transaction log None of these report writer query language data manipulation language transaction log None of these report writer query language data manipulation language ANSWER DOWNLOAD EXAMIANS APP
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