sql - 按月排序 SQL 查询

Question

我有一个 sql 查询:

select dateName(month, DateAccessed) "Month"
, count(1) totalVisits
, count(distinct l.userName) UsersVisit
from and where clause goes here
group by dateName(monthDateAccessed)
order by Month

我得到的输出是

Month   totalVisits   UsersVisit
April         100       25
February      200       35
July          300       45
March         400       55
May           500       65

但我想要的输出顺序是:

February      200       35
March         400       55
April         100       25
May           500       65
July          300       45

我怎样才能得到这个？

Answer 1

使用 month(DateAccessed) 或 datepart(month, DateAccessed) 提取月份编号并在 order by 子句中使用它.但是，您还必须将其添加到 group by 子句中:

SELECT 
    DATENAME(month, DateAccessed) "Month", 
    COUNT(1) totalVisits, 
    COUNT(DISTINCT l.userName) UsersVisit 
FROM and where clause goes here
GROUP BY 
    MONTH(dateaccessed), 
    DATENAME(month, DateAccessed)
ORDER BY 
    MONTH(dateaccessed);

如果您的数据保存超过一年的数据，您应该在 group- 和 order by 子句(和 select 语句)中包含年份，如果您还没有确保在 where 子句中只获取一年的数据.