Question

在这里你们的帮助下，我有以下SQL查询：

SELECT DataLog.TimestampUTC,MeterTags.Name,DataLog.Data
FROM DataLog
INNER JOIN MeterTags
ON DataLog.MeterTagId = MeterTags.MeterTagId
WHERE DataLog.TimeStampUTC between cast(getdate() - 1 as date) and cast(getdate() as date) and
      DataLog.MeterTagId Between 416 AND 462;

这将返回一列“TimestampUTC”，其中包含YYYY-MM-DD hh：mm：ss。我想把时间放在这个栏目中，只显示YYYY-MM-DD。

您可以给予的任何帮助都会非常感激。

提前致谢。

Answer 1

SELECT convert(char(10), DataLog.TimestampUTC, 120) as TimestampUTC, 
MeterTags.Name,DataLog.Data
FROM DataLog
INNER JOIN MeterTags
ON DataLog.MeterTagId = MeterTags.MeterTagId
WHERE DataLog.TimeStampUTC between cast(getdate() - 1 as date) and cast(getdate() as date) and
      DataLog.MeterTagId Between 416 AND 462;

Answer 2

在SQL Server中，您可以转换为日期

select Convert(Date, Convert(datetime, '2013/01/01 12:53:45'))

结果：

2013-01-01

Answer 3

你应该使用： CAST(DataLog.TimestampUTC as date)

代码如下：

SELECT CAST(DataLog.TimestampUTC as date),MeterTags.Name,DataLog.Data
FROM DataLog
INNER JOIN MeterTags
ON DataLog.MeterTagId = MeterTags.MeterTagId
WHERE DataLog.TimeStampUTC between cast(getdate() - 1 as date) and cast(getdate() as date) and
      DataLog.MeterTagId Between 416 AND 462;

从Query中返回的DateTime值中删除时间

3 个答案: