Introduction to Database System Which command is used to remove an index from the database in SQL? DROP INDEX ROLL BACK INDEX REMOVE INDEX DELETE INDEX DROP INDEX ROLL BACK INDEX REMOVE INDEX DELETE INDEX ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Large collections of files are called fields databases file system records None of these fields databases file system records None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System One data dictionary software package is called TOTAL any of the above ACCESS DB/DC dictionary None of these TOTAL any of the above ACCESS DB/DC dictionary None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attribute A determines both attributes B and C, then it is also true that: (B,C) → C → A → B → (B,C) → C → A → B → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database both (a) and (b) None of these can use aggregate functions like SUM and COUNT All of these are written in English both (a) and (b) None of these can use aggregate functions like SUM and COUNT All of these are written in English ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Each of data files has a _____ that describe the way the data is stored in the file. Fields File structure Records Database Fields File structure Records Database ANSWER DOWNLOAD EXAMIANS APP
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