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. True False True False ANSWER DOWNLOAD EXAMIANS APP
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 products was an early implementation of the relational model developed by E.F. Codd of IBM? R:base dBase-II DB2 IDMS R:base dBase-II DB2 IDMS ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is None of these All of these dividing documents to be entered into batches controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these All of these dividing documents to be entered into batches controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The way a particular application views the data from the data base that the application uses is a : relational model schema subschema None of these module relational model schema subschema None of these module ANSWER DOWNLOAD EXAMIANS APP
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