Question

我有一个简单的查询，经常使用它来获取特定时间段内某个生产线上的所有权重数据。

现在，我要将查询转换为Visual Studio报告，以便其他人可以运行该报告，而不必问我。

首先，我尝试在Management Studio中运行查询以查看其是否有效。

DECLARE @ProductionLineID as int
Set @ProductionLineID = 11
DECLARE @Start as timestamp
Set @Start = '2018-06-29 19:20'
DECLARE @End as timestamp
Set @End = '2018-06-30 19:10' 

SELECT [ProductionLineId]
      ,[Timestamp]
      ,[ActiveRecipe]
      ,[ActualWeight]
      ,[SetWeight]
      ,[SetBoxWeight]
      ,[SetMaxTolerance]
      ,[SetMinTolerance]
      ,[DeviationFromSetWeight]
      ,[AmountOfProductInBox]
      ,[AverageProductWeightPerBox]
      ,[ActualSealTemp]
      ,[ActualCuttingTemp]
      ,[ParametersChanged]
      ,[rejectError]
  FROM [PP_Staging].[NIV].[Packaging]

  where ProductionLineId = @ProductionLineID
  and timestamp between @Start and @End

  order by Timestamp

这会导致以下错误

Msg 257, Level 16, State 3, Line 5
Implicit conversion from data type varchar to timestamp is not allowed. Use the CONVERT function to run this query.
Msg 257, Level 16, State 3, Line 7
Implicit conversion from data type varchar to timestamp is not allowed. Use the CONVERT function to run this query.

所以我在相关部分尝试了convert函数：

DECLARE @Start as timestamp
Set @Start = convert(timestamp, '2018-06-29 19:20')
DECLARE @End as timestamp
Set @End = convert(timestamp, '2018-06-30 19:10')

这将导致

Msg 8115, Level 16, State 2, Line 9
Arithmetic overflow error converting expression to data type datetime.

第一个问题是如何输入/设置此参数，以便可以测试报告？

我知道我的代码可以手动输入，所以我基本上是在寻找一种将手动查询转换为带有变量的报告的方法。了解这些信息后，我可以尝试弄清楚如何设置报告。

工作代码示例：

SELECT [ProductionLineId]
      ,[Timestamp]
      ,[ActiveRecipe]
      ,[ActualWeight]
      ,[SetWeight]
      ,[SetBoxWeight]
      ,[SetMaxTolerance]
      ,[SetMinTolerance]
      ,[DeviationFromSetWeight]
      ,[AmountOfProductInBox]
      ,[AverageProductWeightPerBox]
      ,[ActualSealTemp]
      ,[ActualCuttingTemp]
      ,[ParametersChanged]
      ,[rejectError]
  FROM [PP_Staging].[NIV].[Packaging]

  where ProductionLineId = 11
  and timestamp between '2018-06-29 19:20' and '2018-06-30 19:10'

  order by Timestamp

Answer 1

检查[PP_Staging]。[NIV]。[Packaging]的定义。我想您会发现时间戳的数据类型实际上是DATETIME或DATETIME2。然后如下更改变量声明以使其匹配。

DECLARE @ProductionLineID as int
Set @ProductionLineID = 11
DECLARE @Start as DATETIME
Set @Start = '2018-06-29 19:20'
DECLARE @End as DATETIME
Set @End = '2018-06-30 19:10'

如何使用时间戳作为参数

1 个答案: