Introduction to Database System Large collections of files are called records fields None of these databases file system records fields None of these databases file system ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a group of one or more attributes that uniquely identifies a row? Determinant Relation Key Tuple Determinant Relation Key Tuple 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 DISTINCT All of these None of these SELECT DIFFERENT SELECT UNIQUE SELECT DISTINCT All of these None of these SELECT DIFFERENT SELECT UNIQUE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relational schema, each tuple is divided into fields called Queries Domains All of the listed here Relations Queries Domains All of the listed here Relations ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Given the functional dependency R → S , R is called the determinant. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The model for a record management system might be All of these handwritten list a Rolodex card file None of these a business form All of these handwritten list a Rolodex card file None of these a business form ANSWER DOWNLOAD EXAMIANS APP
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