Mysql 日期类型中的按问题排序

与“2011年1月1日”和“2011年1月31日”之间的日期格式相同（支出日期，%d-%m-%Y）

此外，我无法检查介于、？之间的状态

ExpenditureDate—日期类型

下面的查询显示正确，最新日期将依次出现在顶部

SELECT ExpenditureName,ExpenditureAmount,ExpenditurePlaceTypeWhome,ExpenditureDate FROM tblexpenditure WHERE Status=1 AND EntryUser=2 ORDER BY ExpenditureDate DESC 

但是如果我添加日期格式（ExpertiTureDate，“%d-%m-%Y”）作为ExpertiTureDate

然后松开我的正确顺序，它显示有序

SELECT ExpenditureName,ExpenditureAmount,ExpenditurePlaceTypeWhome,date_format(ExpenditureDate,'%d-%m-%Y') as ExpenditureDate FROM tblexpenditure WHERE Status=1 AND EntryUser=2 ORDER BY ExpenditureDate DESC

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我没有一个运行mysql的框来测试，但我尽量避免将格式化的字符串命名为可显示的“支出日期”，与您排序的相同

我没有一个运行mysql的框来测试，但我尽量避免将格式化的可显示字符串命名为“支出日期”，与您排序的相同

MySQL似乎是根据格式化的值排序的。试着写

...,date_format(ExpenditureDate,'%d-%m-%Y') as FormattedExpenditureDate ...

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但是将列名称保留在

ORDER BY

子句中。

MySQL似乎按照格式化的值排序。试着写

...,date_format(ExpenditureDate,'%d-%m-%Y') as FormattedExpenditureDate ...

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但是将列名称保留在

ORDER BY

子句中。

它们可能是按日期的字典顺序排序的，而不是按时间顺序排序的。这是正常的，因为您使用ExpertiTureDate别名进行排序，该别名是一个包含格式化日期的字符串。 使用其他别名：

SELECT ExpenditureName,ExpenditureAmount,ExpenditurePlaceTypeWhome,date_format(ExpenditureDate,'%d-%m-%Y') as FormattedExpenditureDate FROM tblexpenditure WHERE Status=1 AND EntryUser=2 ORDER BY ExpenditureDate DESC

如果确实要保留相同的别名，还可以尝试以下方法：

SELECT ExpenditureName,ExpenditureAmount,ExpenditurePlaceTypeWhome,date_format(ExpenditureDate,'%d-%m-%Y') as ExpenditureDate FROM tblexpenditure WHERE Status=1 AND EntryUser=2 ORDER BY tblexpenditure.ExpenditureDate DESC

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它们可能是按日期的字典顺序排列的，而不是按时间顺序排列的。这是正常的，因为您使用ExpertiTureDate别名进行排序，该别名是一个包含格式化日期的字符串。 使用其他别名：

SELECT ExpenditureName,ExpenditureAmount,ExpenditurePlaceTypeWhome,date_format(ExpenditureDate,'%d-%m-%Y') as FormattedExpenditureDate FROM tblexpenditure WHERE Status=1 AND EntryUser=2 ORDER BY ExpenditureDate DESC

如果确实要保留相同的别名，还可以尝试以下方法：

SELECT ExpenditureName,ExpenditureAmount,ExpenditurePlaceTypeWhome,date_format(ExpenditureDate,'%d-%m-%Y') as ExpenditureDate FROM tblexpenditure WHERE Status=1 AND EntryUser=2 ORDER BY tblexpenditure.ExpenditureDate DESC