Question

我正在使用此查询从一列中分离MIN(INTIME)和MAX DateTime(OUTTIME)。现在，在分隔MIN和MAX DateTime之后，我想将值复制到仅显示Date的另一列。

SELECT 
    EmpID, 
    MAX(CASE WHEN INOUT = 1 THEN Datetime END) AS INtime,
    MAX(CASE WHEN INOUT = 2 THEN Datetime END) AS Outtime
FROM 
    MachineAttendance AS t
GROUP BY 
    EmpID, CONVERT(DATE, Datetime)

请指导

Answer 1

只需在SELECT中包含表达式：

SELECT EmpID, CONVERT(date, Datetime) as thedate,
       MAX(CASE WHEN INOUT = 1 THEN Datetime END) AS INtime,
       MAX(CASE WHEN INOUT = 2 THEN Datetime END) AS Outtime
FROM MachineAttendance AS t
GROUP BY EmpID, CONVERT(date, Datetime);

如何从日期时间拆分日期？

1 个答案: