Question

我在网上找到了以下sql查询，如果它正常工作，那将是完美的，但它并没有遵守where子句。

SELECT *
FROM Chicken AS a,
     (SELECT MIN(Temp) AS mini, MAX(Temp) AS maxi
      FROM Chicken
     ) AS m
WHERE m.maxi = a.Temp AND `Location` = "Outside" OR m.mini = a.Temp AND `Location` = "Outside"
ORDER BY `a`.`Time` DESC Limit 1

正在发生的事情是它无论位置如何都采取最低和最高温度。我需要它来找到该位置的最低和最高温度＆＃39;外部＆＃39;

有人可以帮忙吗？

Answer 1

SELECT *
FROM Chicken AS a,
     (SELECT MIN(Temp) AS mini, MAX(Temp) AS maxi
      FROM Chicken
     ) AS m
WHERE (m.maxi = a.Temp AND `Location` = "Outside") OR (m.mini = a.Temp AND `Location` = "Outside")
ORDER BY `a`.`Time` DESC Limit 1

试试这可能适合你。

哪个条款没有遵守

1 个答案: