Introduction to Database System The activity of a file is a low percentages of number of records added or deleted from a file None of these if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated is a measure of the percentage of existing records updated during a run is a low percentages of number of records added or deleted from a file None of these if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated is a measure of the percentage of existing records updated during a run ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Keys made up of two or more attributes are called composite keys. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A list in alphabetical order is the result of a sort operation both (b) and (c) None of these is in ascending order is in descending order is the result of a sort operation both (b) and (c) None of these is in ascending order is in descending order 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? None of the listed here Characters Data field Bits None of the listed here Characters Data field Bits 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 DB2 IDMS R:base dBase-II DB2 IDMS R:base ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following command(s) is(are) used to recompile a stored procedure in SQL? MODIFY PROCEDURE ALTER PROCEDURE COMPILE PROCEDURE None of the listed here MODIFY PROCEDURE ALTER PROCEDURE COMPILE PROCEDURE None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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