Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A tuple is a(n): row of a table. key of a table. column of a table. two dimensional table. row of a table. key of a table. column of a table. two dimensional table. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An on-line commercial site such as Amazon.com is an example of a(n) ________ . multiuser database application e-commerce database application data mining database application single-user database application multiuser database application e-commerce database application data mining database application single-user database application ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The index consists of pointers to the master list both (a) and (b) None of these a list of keys All of these pointers to the master list both (a) and (b) None of these a list of keys All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The PROJECT command will create new table that has more fields than the original table both of the listed here none of the listed here more rows than the original table more fields than the original table both of the listed here none of the listed here more rows than the original table ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? All of these None of these SELECT DISTINCT SUB FROM BOOK SELECT ALL FROM BOOK SELECT SUB FROM BOOK All of these None of these SELECT DISTINCT SUB FROM BOOK SELECT ALL FROM BOOK SELECT SUB FROM BOOK ANSWER DOWNLOAD EXAMIANS APP
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