Introduction to SQL
Find the temperature in increasing order of all cities

SELECT city, temperature FROM weather ORDER BY temperature;
SELECT city FROM weather ORDER BY temperature;
SELECT city, temperature FROM weather;
SELECT city, temperature FROM weather ORDER BY city;

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Introduction to SQL
Which of the following query is correct for using comparison operators in SQL?

SELECT name, course_name FROM student WHERE age>50 and age <80;
None of these
SELECT name, course_name FROM student WHERE age>50 and <80;
SELECT name, course_name FROM student WHERE age>50 and WHERE age<80;

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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')

None of These
Find the sailor IDs of at least one sailor who have reserved red boats but not green boats
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

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