Tag > tips and solutions
Exercise #2 (tips and solutions)
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exercise 2
Exercise #6 (tips and solutions)
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exercise 6, inner join
Exercise #11 (tips and solutions)
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AVG, exercise 11
Exercise #16 (tips and solutions)
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exercise 16
Exercise #17 (tips and solutions)
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exercise 17, subquery
Exercise #27 (tips and solutions)
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exercise 27
Exercise #30 (tips and solutions)
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exercise 30
Exercise #39 (tips and solutions)
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exercise 39
Exercise #54 (tips and solutions)
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UNION, exercise 54
Exercise #55 (tips and solutions)
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exercise 55