Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows None of these SELECT UNIQUE SELECT DISTINCT All of these SELECT DIFFERENT None of these SELECT UNIQUE SELECT DISTINCT All of these SELECT DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products was the first to implement true relational algebra in a PC DBMS? dBase-II Oracle IDMS R:base dBase-II Oracle IDMS R:base ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? Data field Bits Characters None of the listed here Data field Bits Characters None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The DBMS ranked as being the "easiest to use" in the text is Oracle Corporation's Oracle. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation has cells that hold multi-value entries. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a logical data-base structure? relational network chain tree relational network chain tree ANSWER DOWNLOAD EXAMIANS APP
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