Introduction to Database System Which of the following is a serious problem of file management systems? data redundancy All of these lack of data independence program dependence difficult to update data redundancy All of these lack of data independence program dependence difficult to update ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: identifies a column. can only be one column. identifies a row. must always be composed of two or more columns. identifies a column. can only be one column. identifies a row. must always be composed of two or more columns. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Database applications are seldom intended for use by a single user. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data encryption techniques are particularly useful for None of these reducing storage space requirements protecting data in data communication systems All of these improving data integrity None of these reducing storage space requirements protecting data in data communication systems All of these improving data integrity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A database management system None of the listed here Both of the listed here allows simultaneous access to multiple files can do more than a record management system None of the listed here Both of the listed here allows simultaneous access to multiple files can do more than a record management system ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A functional dependency is always an equation. True False True False ANSWER DOWNLOAD EXAMIANS APP
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