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我在一个表中有两个表我有一个列违规日期，在另一个表中我有 NTO 日期列现在我想找到如何从 NTOdate 大于 50 天的违规日期的表中检索数据。但是当我运行这个查询时，我得到错误，因为'50'附近的语法不正确。

SELECT [ICPS].[dbo].[tickets].t_vrm
  ,[ICPS].[dbo].[tickets].t_zone_name
  ,[ICPS].[dbo].[tickets].t_street_name
FROM [ICPS].[dbo].[tickets]
INNER JOIN [ICPS].[dbo].[ticket_events]
  ON [ICPS].[dbo].[ticket_events].[te_system_ref] = [ICPS].[dbo].[tickets].[t_number]
WHERE [ICPS].[dbo].[tickets].[t_camera_ticket] = '0'
  AND [ICPS].[dbo].[tickets].[t_date_time_issued] >= convert(DATETIME, '2012/10/01', 101)
  AND [ICPS].[dbo].[ticket_events].[te_event_code] = '300'
  AND [ICPS].[dbo].[ticket_events].[te_date] > DATE (DATE_SUB([ICPS].[dbo].[tickets].[t_date_time_issued], INTERVAL 50 days))
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1 回答 1

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您可以使用 Datediff 函数：DateDiff(DD,'firstDate','SecondDate')。这是示例：

select [ICPS].[dbo].[tickets].t_vrm,[ICPS].[dbo].[tickets] .t_zone_name, [ICPS].[dbo].[tickets] .t_street_name from  [ICPS].[dbo].[tickets]  inner join 
      [ICPS].[dbo].[ticket_events] on [ICPS].[dbo].[ticket_events].[te_system_ref] = [ICPS].[dbo].[tickets].[t_number] 
where[ICPS].[dbo].[tickets].[t_camera_ticket] = '0' and  [ICPS].[dbo].[tickets].[t_date_time_issued] >= convert(datetime,'2012/10/01',101)
      and [ICPS].[dbo].[ticket_events].[te_event_code] = '300' and 
     DateDiff(DD, [ICPS].[dbo].[tickets].[t_date_time_issued], [ICPS].[dbo].[ticket_events].[te_date]) >50)
于 2013-07-29T14:58:50.133 回答