Introduction to SQL What operator tests column for the absence of data? IS NULL operator None of these NOT operator EXISTS operator IS NULL operator None of these NOT operator EXISTS operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find the names of the countries whose condition is sunny. SELECT country FROM location WHERE city NOT IN (SELECT city FROM weather WHERE condition = 'sunny'); SELECT country FROM location WHERE condition = 'sunny'; SELECT country FROM location WHERE city UNION (SELECT city FROM weather WHERE condition = 'sunny'); SELECT country FROM location WHERE city IN (SELECT city FROM weather WHERE condition = sunny'); SELECT country FROM location WHERE city NOT IN (SELECT city FROM weather WHERE condition = 'sunny'); SELECT country FROM location WHERE condition = 'sunny'; SELECT country FROM location WHERE city UNION (SELECT city FROM weather WHERE condition = 'sunny'); SELECT country FROM location WHERE city IN (SELECT city FROM weather WHERE condition = sunny'); ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The Microsoft Access wildcards are ____ and ____ . question mark (?); asterisk (*) asterisk (*); percent sign (%) underscore(_); question mark (?) percent sign (%); underscore (_) question mark (?); asterisk (*) asterisk (*); percent sign (%) underscore(_); question mark (?) percent sign (%); underscore (_) ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find all the cities whose humidity is 89 SELECT city FROM weather; SELECT humidity = 89 FROM weather; SELECT city FROM weather WHERE humidity = 89; SELECT city WHERE humidity = 89; SELECT city FROM weather; SELECT humidity = 89 FROM weather; SELECT city FROM weather WHERE humidity = 89; SELECT city WHERE humidity = 89; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the SQL statements is correct? SELECT Username, Password FROM Users None of these SELECT Username, Password WHERE Username = 'user1' SELECT Username AND Password FROM Users SELECT Username, Password FROM Users None of these SELECT Username, Password WHERE Username = 'user1' SELECT Username AND Password FROM Users ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What does the following query find?(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'red')MINUS(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'green') Find the sailor IDs of all sailors who have reserved red boats but not green boats Find the sailor Ids of atmost one sailor who have reserved red boats but not green boats Find the sailor IDs of at least one sailor who have reserved red boats but not green boats None of These Find the sailor IDs of all sailors who have reserved red boats but not green boats Find the sailor Ids of atmost one sailor who have reserved red boats but not green boats Find the sailor IDs of at least one sailor who have reserved red boats but not green boats None of These ANSWER DOWNLOAD EXAMIANS APP
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