Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? SELECT DISTINCT SUB FROM BOOK All of these None of these SELECT SUB FROM BOOK SELECT ALL FROM BOOK SELECT DISTINCT SUB FROM BOOK All of these None of these SELECT SUB FROM BOOK SELECT ALL FROM BOOK ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A compound key both (a) and (b) uniquely identifies an item in a list None of these is made up a several pieces of information is a combination of each unique key both (a) and (b) uniquely identifies an item in a list None of these is made up a several pieces of information is a combination of each unique key ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Updating a database means reorganizing the database modifying or adding record occurrences revising the file structure all of the listed here reorganizing the database modifying or adding record occurrences revising the file structure all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ Contains fields of data about one entity. File Record Document Fields None of these File Record Document Fields None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, the _____ command is used to recompile a view None of these COMPILE VIEW DEFINE VIEW CREATE VIEW ALTER VIEW None of these COMPILE VIEW DEFINE VIEW CREATE VIEW ALTER VIEW ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance. False True False True ANSWER DOWNLOAD EXAMIANS APP
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