Question

我有一个非常简单的表，在SQL中看起来像这样：

EnglishCount

0
1
2
1
3
4
6
1
2

只有一列，其值为0到10。

我想要做的是创建一个报告，告诉我这个：

EC      Qty
1       3
2       2
3       1
4       1
6       1

有人可以给我一个如何实现这个目标的建议。请注意，我希望EC的值按顺序显示，并且只显示行具有EnglishCount＆gt;的计数。 0

Answer 1

这是一种正确的方法：

SELECT
    EnglishCount AS EC,
    COUNT(*) AS Qty
FROM yourTable
GROUP BY EnglishCount
HAVING COUNT(*) > 0
ORDER BY
    CASE WHEN COUNT(*) = 1 THEN 0 ELSE 1 END,
    EnglishCount

Answer 2

select EnglishCount as EC,count(*) as Qty from table group by EnglishCount;

如果您想通过EnglishCount订购，

select EnglishCount as EC,count(*) as Qty from table group by EnglishCount order by EnglishCount;

如果您想按计数订购，

select EnglishCount as EC,count(*) as Qty from table group by EnglishCount order by Qty;

Answer 3

select EnglishCount as EC,count(*) as Qty from TableName where EnglishCount > 0 group by EnglishCount;

试试这个......

如何创建一个报告，向我显示值在表中出现的次数？

3 个答案: