SQL Server — JOINs

1 MySQL INNER JOIN employees and departments Medium 2 T-SQL INNER JOIN departments #1 Hard 3 T-SQL INNER JOIN departments #2 Medium 4 T-SQL INNER JOIN departments #3 Easy 5 T-SQL INNER JOIN departments #4 Medium 6 T-SQL INNER JOIN departments #5 Hard 7 T-SQL INNER JOIN departments #6 Medium 8 T-SQL INNER JOIN departments #7 Easy 9 T-SQL INNER JOIN departments #8 Medium 10 T-SQL INNER JOIN departments #9 Hard 11 T-SQL INNER JOIN departments #10 Medium 12 T-SQL INNER JOIN departments #11 Easy 13 T-SQL INNER JOIN departments #12 Medium 14 T-SQL INNER JOIN departments #13 Hard 15 T-SQL INNER JOIN departments #14 Medium 16 T-SQL INNER JOIN departments #15 Easy 17 T-SQL INNER JOIN departments #16 Medium 18 T-SQL INNER JOIN departments #17 Hard 19 T-SQL INNER JOIN departments #18 Medium 20 T-SQL INNER JOIN departments #19 Easy 21 T-SQL INNER JOIN departments #20 Medium 22 T-SQL INNER JOIN departments #21 Hard 23 T-SQL INNER JOIN departments #22 Medium 24 T-SQL INNER JOIN departments #23 Easy 25 T-SQL INNER JOIN departments #24 Medium 26 T-SQL INNER JOIN departments #25 Hard 27 T-SQL INNER JOIN departments #26 Medium 28 T-SQL INNER JOIN departments #27 Easy 29 T-SQL INNER JOIN departments #28 Medium 30 T-SQL INNER JOIN departments #29 Hard 31 T-SQL INNER JOIN departments #30 Medium 32 T-SQL INNER JOIN departments #31 Easy 33 T-SQL INNER JOIN departments #32 Medium 34 T-SQL INNER JOIN departments #33 Hard 35 T-SQL INNER JOIN departments #34 Medium 36 T-SQL INNER JOIN departments #35 Easy 37 T-SQL INNER JOIN departments #36 Medium 38 T-SQL INNER JOIN departments #37 Hard 39 T-SQL INNER JOIN departments #38 Medium 40 T-SQL INNER JOIN departments #39 Easy 41 T-SQL INNER JOIN departments #40 Medium 42 T-SQL INNER JOIN departments #41 Hard 43 T-SQL INNER JOIN departments #42 Medium 44 T-SQL INNER JOIN departments #43 Easy 45 T-SQL INNER JOIN departments #44 Medium 46 T-SQL INNER JOIN departments #45 Hard 47 T-SQL INNER JOIN departments #46 Medium 48 T-SQL INNER JOIN departments #47 Easy 49 T-SQL INNER JOIN departments #48 Medium 50 T-SQL INNER JOIN departments #49 Hard