Introduction to Database System In a relation, the columns are sometimes called "attributes". False True False True 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? Greater Entity Count (GEC) Minimum cardinality Maximum cardinality ERD Greater Entity Count (GEC) Minimum cardinality Maximum cardinality ERD ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If you want to group the records in the abc database, you could use the Jobcode as the _____. Sort Key Index Delete Update Sort Key Index Delete Update ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM? dBase-II IDMS DB2 R:base dBase-II IDMS DB2 R:base 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 SELECT UNIQUE SELECT DISTINCT None of these All of these SELECT DIFFERENT SELECT UNIQUE SELECT DISTINCT None of these All of these SELECT DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes All of these data elements record relationships None of these records and files All of these data elements record relationships None of these records and files ANSWER DOWNLOAD EXAMIANS APP
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