Question

我有此查询，我只想获取当前年份，

SELECT DATE_FORMAT(in_time,'%M %Y') as MonthlyAtt,
     count(employees_id) as AttCount,
     count(Distinct employees_id) as DistinctedAttCount

FROM attendance
GROUP BY DATE_FORMAT(in_time,'%M %Y') 
ORDER BY (in_time)

样本输出

Output of the Query Above

我只想显示2019年。我该怎么办？

Answer 1

如果我理解正确，则可以尝试以下操作：

SELECT DATE_FORMAT(in_time,'%M %Y') as MonthlyAtt,
     count(employees_id) as AttCount,
     count(Distinct employees_id) as DistinctedAttCount

FROM attendance 
WHERE DATE_FORMAT(in_time,'%Y')=2019
GROUP BY DATE_FORMAT(in_time,'%M %Y') 
ORDER BY DATE_FORMAT(in_time,'%M %Y') desc

使用where子句将搜索限制为仅2019年

Answer 2

尝试一下：

SELECT DATE_FORMAT(in_time,'%M %Y') as MonthlyAtt,
     count(employees_id) as AttCount,
     count(Distinct employees_id) as DistinctedAttCount
FROM attendance
WHERE YEAR(in_time) = YEAR(CURDATE())
ORDER BY (in_time)

仅如何获取当前年份？

2 个答案: