Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows SELECT UNIQUE SELECT DISTINCT SELECT DIFFERENT None of these All of these SELECT UNIQUE SELECT DISTINCT SELECT DIFFERENT None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An entity is something that can be identified in the user's work environment; something that the users want to track. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a type of DBMS software? utilities database manipulation language query language All of these report writer utilities database manipulation language query language All of these report writer ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data encryption techniques are particularly useful for protecting data in data communication systems reducing storage space requirements All of these improving data integrity None of these protecting data in data communication systems reducing storage space requirements All of these improving data integrity None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type is related to only one record of another record type. Many-to-many relationship One-to-many relationship Many-to-one relationship None of these One-to-one relationship Many-to-many relationship One-to-many relationship Many-to-one relationship None of these One-to-one relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The Management Information system (MIS) structure with one main computer system is called a centralized MIS structure distributed MIS structure decentralized MIS structure hierarchical MIS structure centralized MIS structure distributed MIS structure decentralized MIS structure hierarchical MIS structure ANSWER DOWNLOAD EXAMIANS APP
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