Question

我想通过拍摄当天的日期在90天前保留日期。 Tablonun ismi：etl.PackageExecutionDuration 我希望将记录删除90天。要比较的列名：created_time。在90天之前它将是23:59:59。我怎么能这样做？

我已完成以下查询，但有更简单的方法或形状？

DELETE etl.PackageExecutionDuration where created_time<   (select CONVERT(datetime,
  DATEADD(SECOND,-1,
  CONVERT(datetime,
  CONVERT(date, 
  CONVERT(datetime, 
  DATEADD(DAY, -89, GETDATE())))))))

Answer 1

简化为：

where created_time <= cast(dateadd(day, -90, getdate()) as date)

Answer 2

DELETE etl.PackageExecutionDuration where created_time<   (select CONVERT(datetime,
  DATEADD(milisecond,-1,
  CONVERT(datetime,
  CONVERT(date, 
  CONVERT(datetime, 
  DATEADD(DAY, -89, GETDATE())))))))

Answer 3

DELETE etl.PackageExecutionDuration where created_time<   (select CONVERT(datetime,
  DATEADD(SECOND,-1,
  CONVERT(datetime, 
  DATEADD(DAY, -11, GETDATE())))))

此True查询

如何从getdate（）永久获取大日期到90天？

3 个答案: