sql - 从 Query 中返回的 DateTime 值中删除时间

Question

在你们的帮助下，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;

这将返回带有 YYYY-MM-DD hh:mm:ss 的列“TimestampUTC”。我想在此列中删除时间，只显示 YYYY-MM-DD。

您可以提供的任何帮助将不胜感激。

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)

代码如下所示：

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;