Introduction to Database System Which command is used to remove an index from the database in SQL? ROLL BACK INDEX DELETE INDEX DROP INDEX REMOVE INDEX ROLL BACK INDEX DELETE INDEX DROP INDEX REMOVE INDEX ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains the names of all fields in all files the widths of all fields in all files All of these None of these the data types of all fields in all files the names of all fields in all files the widths of all fields in all files All of these None of these the data types of all fields in all files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System It is more accurate to define a _____ as a variety of different record types that are treated as a single unit Record Table None of these Flat File Database Record Table None of these Flat File Database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products implemented the CODASYL DBTG model? IDMS DB2 dBase-II R:base IDMS DB2 dBase-II R:base ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A large computer information system maintains many different computer files. Which amongst them is called a perpetual file? Update file Specialized file Master file Log file Update file Specialized file Master file Log file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. True False True False ANSWER DOWNLOAD EXAMIANS APP
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