TSQL Help to get results based on starttime

• Mac1986

  SSCertifiable

  Points: 6216

  More actions

  January 20, 2014 at 11:56 pm

  #303429

  i have a requirement to get the appropriate RunID based on the Starttime.

  I'm not able to get results if Starttime is beween 00:00 and 05:00 for ABC Dataset. Please help.declare @Schedule Table(Dataset sysname,RunID SMALLINT,StartMinTime TIME)

  INSERT INTO @Schedule

  select 'ABC',1,'22:01' union ALL

  select 'ABC',2,'05:01' union ALL

  select 'ABC',3,'14:01' union ALL

  select 'XYZ',1,'03:01' union ALL

  select 'XYZ',2,'12:01' union ALL

  select 'XYZ',3,'20:01'

  Declare @DatasetName sysname = 'XYZ'

  Declare @StartTime datetime = '2014-01-19 01:21:39.000'

  Select RunID,@StartTime, CAST(CAST(@StartTime AS DATE) AS DATETIME) + CAST(StartMinTime AS TIME)

  from @Schedule where Dataset = @DatasetName

  and DATEPART(hour,cast(@StartTime as TIME)) >= DATEPART(hour, StartMinTime) and DATEPART(hour,cast(@StartTime as TIME)) <= (DATEPART(hour, StartMinTime) + 8)

• ChrisM@Work

  SSC Guru

  Points: 186127

  More actions

  January 21, 2014 at 2:46 am

  #1681782

  Move your search predicates from the WHERE clause to the output. This a) gives you some output and b) shows you why it doesn't work:

  --I'm not able to get results if Starttime is beween 00:00 and 05:00 for ABC Dataset. Please help.

  DECLARE @Schedule Table(Dataset sysname, RunID SMALLINT, StartMinTime TIME)

  INSERT INTO @Schedule

  select 'ABC',1,'22:01' union ALL

  select 'ABC',2,'05:01' union ALL

  select 'ABC',3,'14:01' union ALL

  select 'XYZ',1,'03:01' union ALL

  select 'XYZ',2,'12:01' union ALL

  select 'XYZ',3,'20:01'

  SELECT * FROM @Schedule

  DECLARE @DatasetName sysname = 'XYZ'

  DECLARE @StartTime datetime = '2014-01-19 01:21:39.000'

  SELECT

  RunID,

  [@StartTime]= @StartTime,

  -- CAST(CAST(@StartTime AS DATE) AS DATETIME) + CAST(StartMinTime AS TIME), -- fails, cannot add TIME to DATETIME

  CAST(CAST(@StartTime AS DATE) AS DATETIME),

  CAST(StartMinTime AS TIME), -- StartMinTime IS time

  [From]= DATEPART(hour, StartMinTime),

  [SearchValue]= DATEPART(hour,cast(@StartTime as TIME)),

  [To]= (DATEPART(hour, StartMinTime) + 8)

  FROM @Schedule

  WHERE Dataset = @DatasetName

  --and DATEPART(hour,cast(@StartTime as TIME)) >= DATEPART(hour, StartMinTime)

  --and DATEPART(hour,cast(@StartTime as TIME)) <= (DATEPART(hour, StartMinTime) + 8)

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