Introduction to Database System In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction? ZIP SAVE PACK COMMIT ZIP SAVE PACK COMMIT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The functional dependency R → S means that the value of S can be determined when we are given a value of R. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A race condition occurs when Two concurrent activities interact to cause a processing error two users of the DBMS are interacting with different files at the same time None of the listed here Both of the listed here Two concurrent activities interact to cause a processing error two users of the DBMS are interacting with different files at the same time None of the listed here Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which two files are used during operation of the DBMS? query language and utilities data dictionary and query language data dictionary and transaction log None of the listed here query language and utilities data dictionary and query language data dictionary and transaction log None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A list in alphabetical order is in descending order both (b) and (c) None of these is the result of a sort operation is in ascending order is in descending order both (b) and (c) None of these is the result of a sort operation is in ascending order ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files is a low percentages of number of records added or deleted from a file None of these is a measure of the percentage of existing records updated during a run refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files is a low percentages of number of records added or deleted from a file None of these is a measure of the percentage of existing records updated during a run ANSWER DOWNLOAD EXAMIANS APP
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