mysql - 选出运动项目最少的5个运动项目

Question

我有这张运动 table :

CREATE TABLE Sports(
    name_sport VARCHAR(50) PRIMARY KEY,
    categories_sport VARCHAR(50),
    type_result_sport VARCHAR(50),
    discipline TEXT,
    enEquipe BOOLEAN 
);

我填充了如下数据:

('Women''s 50m Freestyle','freestyle','aquatics','temps','FALSE'),

('Trap Women','shooting','shooting','temps','FALSE'),
('10m Air Pistol Men','shooting','shooting','score','FALSE'),
('10m Air Rifle Men','shooting','shooting','score','FALSE'),

('Women''s Discus Throw','throws','athletics','score','FALSE'),
('Women''s Hammer Throw','throws','athletics','score','FALSE'),
('Women''s Javelin Throw','throws','athletics','score','FALSE'),
('Men''s 100m','track','athletics','temps','FALSE'),

('Women''s Doubles','badminton','badminton','temps','TRUE'),
('Women''s Singles','badminton','badminton','temps','FALSE'),
('Men''s Doubles','badminton','badminton','temps','TRUE'),
('Men''s Singles','badminton','badminton','temps','FALSE'),

('Lightweight Women''s Double Sculls','rowing','rowing','temps','FALSE'),
('Women''s Double Sculls','rowing','rowing','temps','FALSE'),
('Women''s Eight','rowing','rowing','temps','FALSE'),
('Women''s Pair','rowing','rowing','temps','FALSE'),
('Women''s Quadruple Sculls','rowing','rowing','temps','FALSE'),
('Women''s Single Sculls','rowing','rowing','temps','FALSE'),
('Lightweight Men''s Double Sculls','rowing','rowing','temps','FALSE'),
('Lightweight Men''s Four','rowing','rowing','temps','FALSE'), 

('Women''s +75kg','weightlifting','weightlifting','score','FALSE'),
('Women''s 48kg','weightlifting','weightlifting','score','FALSE'),
('Women''s 53kg','weightlifting','weightlifting','score','FALSE'),
('Women''s 58kg','weightlifting','weightlifting','score','FALSE'),
('Women''s 63kg','weightlifting','weightlifting','score','FALSE'),
('Women''s 69kg','weightlifting','weightlifting','score','FALSE'),
('Women''s 75kg','weightlifting','weightlifting','score','FALSE'),
('Men''s +105kg','weightlifting','weightlifting','score','FALSE'),
('Men''s 105kg','weightlifting','weightlifting','score','FALSE'),
('Men''s 56kg','weightlifting','weightlifting','score','FALSE'),
('Men''s 62kg','weightlifting','weightlifting','score','FALSE'),
('Men''s 69kg','weightlifting','weightlifting','score','FALSE'),
('Men''s 77kg','weightlifting','weightlifting','score','FALSE'),
('Men''s 85kg','weightlifting','weightlifting','score','FALSE'),
('Men''s 94kg','weightlifting','weightlifting','score','FALSE'),

我正在尝试选择运动项目较少的 5 个类别(水上运动、田径、射箭......)(男子 100 米、女子 50 米自由泳......)

在这种情况下，输出将是:

Aquatics
Athletics
Shooting
badminton
rowing

谢谢

编辑 1:添加了更多示例数据和所需的输出。

Answer 1

请试试这个。 group by语句分组类别，order by order by orders results by orders results by occurrences on each category, limit 限制返回结果数为5

 select categories_sport, count(*) as cnt
   from Sports
  group by (categories_sport)
  order by cnt asc
  limit 5