Introduction to Database System An audit trail can be used to restore lost information All of the listed here is the recorded history of operations performed on a file is used to make back-up copies can be used to restore lost information All of the listed here is the recorded history of operations performed on a file is used to make back-up copies ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A form defines where data is placed on the screen none of the listed here the width of each field both of the listed here where data is placed on the screen none of the listed here the width of each field both of the listed here 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 R:base DB2 dBase-II IDMS R:base DB2 ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "records". False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? Data field Characters None of the listed here Bits Data field Characters None of the listed here Bits ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sort/report generators none of the listed here do not need to sort before generating a report require more disk space than index/report generators are faster than index/report generators none of the listed here do not need to sort before generating a report require more disk space than index/report generators are faster than index/report generators ANSWER DOWNLOAD EXAMIANS APP
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