Introduction to Database System An entity class is a collection of entities and is described by the structure of the entities in that class. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A database design may be based on existing data. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A minimum cardinality is the minimum number of entity instances that may participate in a relationship instance. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database None of these can use aggregate functions like SUM and COUNT are written in English both (a) and (b) All of these None of these can use aggregate functions like SUM and COUNT are written in English both (a) and (b) All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The master list of an indexed file None of these is sorted in ascending order has a number assigned to each record both (b) and (c) contains only a list of keys and record numbers None of these is sorted in ascending order has a number assigned to each record both (b) and (c) contains only a list of keys and record numbers ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System One of the reasons why OODBMSs have not been widely used for business information systems is that OOP is obsolete. True False True False ANSWER DOWNLOAD EXAMIANS APP
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