Introduction to Database System The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in None of these a hashed file a sequential file a tree file an indexed file None of these a hashed file a sequential file a tree file an indexed file ANSWER DOWNLOAD EXAMIANS APP
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 difficult to update program dependence data redundancy All of these lack of data independence difficult to update program dependence ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove a table from the database in SQL? ERASE TABLE DROP TABLE DELETE TABLE UNATTACH TABLE ERASE TABLE DROP TABLE DELETE TABLE UNATTACH TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sort/report generators none of the listed here require more disk space than index/report generators do not need to sort before generating a report are faster than index/report generators none of the listed here require more disk space than index/report generators do not need to sort before generating a report are faster than index/report generators ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An identifier typically uses more than one attribute. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An indexing operation establishes an index for a file sorts a file using a single key None of the listed here sorts file using two keys establishes an index for a file sorts a file using a single key None of the listed here sorts file using two keys ANSWER DOWNLOAD EXAMIANS APP
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