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Update of my answers.sql #70

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11 changes: 10 additions & 1 deletion SQL Deep Dive/Comparison Operators/questions.sql
Original file line number Diff line number Diff line change
Expand Up @@ -7,15 +7,24 @@
/*
* Write your query here
*/
SELECT firstname, lastname
FROM customers
WHERE age > 44 and income >= 100000


-- Who between the ages of 30 and 50 has an income less than 50 000?
-- (include 30 and 50 in the results)

/*
* Write your query here
*/
SELECT COUNT(income)
FROM customers
WHERE age >= 30 and age <= 50 AND income < 50000;

-- What is the average income between the ages of 20 and 50? (Excluding 20 and 50)
/*
* Write your query here
*/
SELECT AVG(income)
FROM customers
WHERE age > 20 and age < 50;