Introduction to Database System An attribute that names or identifies entity instances is a(n): attribute. entity. relationship. identifier. attribute. entity. relationship. identifier. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The designer of a form includes None of these data both (a) and (b) prompts filed designators None of these data both (a) and (b) prompts filed designators ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove an index from the database in SQL? REMOVE INDEX DROP INDEX ROLL BACK INDEX DELETE INDEX REMOVE INDEX DROP INDEX ROLL BACK INDEX DELETE INDEX ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields. Hierarchical None of these Network Object-Oriented Relational Hierarchical None of these Network Object-Oriented Relational ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: can only be one column. identifies a column. identifies a row. must always be composed of two or more columns. can only be one column. identifies a column. identifies a row. must always be composed of two or more columns. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in a sequential file a tree file a hashed file an indexed file None of these a sequential file a tree file a hashed file an indexed file None of these ANSWER DOWNLOAD EXAMIANS APP
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