x

Get an Avergae and Total from the Time Collected

Now that you all helped on the query as in below. How can I get the total time hh:mm:ss and get the average of it?


SELECT CONVERT(varchar(8),cast(
    cast(
       substring(right('000000'+cast(rptime as varchar),6),1,2)
       + ':' +
       substring(right('000000'+cast(rptime as varchar),6),3,2)
       + ':' +
       substring(right('000000'+cast(rptime as varchar),6),5,2) 
    as datetime) - --Do the math on the rptime(End) and rfotime(start) time to get the elapsed time
    cast(
       substring(right('000000'+cast(rfotime as varchar),6),1,2)
       + ':' +
       substring(right('000000'+cast(rfotime as varchar),6),3,2)
       + ':' +
       substring(right('000000'+cast(rfotime as varchar),6),5,2) 
    as datetime)
  as time)) AS AvgTimePick
    FROM OPENQUERY (GSFL2K,'SELECT rfco
                    ,rfloc
                    ,rfcust
                   /*   ,rfoord#
                    ,rforel#    */
                    ,rfotime
                    ,rptime
                   FROM rfwillchst
                   WHERE rfloc = 50
                    AND rfodate = CURRENT_DATE - 1 days
                    AND rpstat = ''T''
                    AND rfobin# != ''SHIPD''
                   --   AND rfoord# = 34804
              ')
GROUP BY rfco
       ,rfloc
       ,rfcust
       --,rfoord#
       --,rforel#
       ,rfotime
       ,rptime
ORDER BY rfcust
       ,rfotime
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asked Apr 27, 2012 at 10:05 PM in Default

jaymz69 gravatar image

jaymz69
172 10 11 13

Welcome to the site. I edited this with the code tag to make it easier to read.
Apr 27, 2012 at 11:58 PM TimothyAWiseman
Thank you
Apr 30, 2012 at 03:24 PM jaymz69

I get this message error. I know follow the error and debug it, but FYI...

Msg 8115, Level 16, State 5, Line 3 Arithmetic overflow error converting numeric to data type varchar.
Apr 30, 2012 at 03:39 PM jaymz69
(comments are locked)
10|1200 characters needed characters left

2 answers: sort voted first

This is an example of using aggregate function on sets of data that you can hopefully use to apply the same logic to your dataset

USE [AdventureWorks]
GO
-- all details, no aggregation
SELECT [sod].[SalesOrderID] ,
    [sod].[OrderQty] ,
    [sod].[UnitPrice] ,
    [sod].[LineTotal]
FROM [Sales].[SalesOrderDetail] AS sod
WHERE [sod].[SalesOrderID] BETWEEN 43659 AND 43670

-- using SUM and AVG aggregation functions
SELECT [sod].[SalesOrderID] ,
    AVG([sod].[OrderQty]) AS [Average quantity] ,
    AVG([sod].[UnitPrice]) AS [Average price],
    SUM([sod].[LineTotal]) AS [Total Cost]
FROM [Sales].[SalesOrderDetail] AS sod
WHERE [sod].[SalesOrderID] BETWEEN 43659 AND 43670
GROUP BY [sod].[SalesOrderID]

here is an example that works with time data

IF OBJECT_ID('Times') IS NOT NULL 
    DROP TABLE [dbo].[Times]
    GO
    -- create an example table
CREATE TABLE Times
    (
      itemID INT ,
      dtStart DATETIME ,
      dtEnd DATETIME
    )
GO
-- add 100 rows
WHILE ( SELECT COUNT(*)
         FROM [dbo].[Times]
      ) < 100 
    BEGIN
       INSERT [dbo].[Times]
          ( itemID ,
            [dtStart] 
          )
          SELECT ABS(CHECKSUM(NEWID())) % 7 + 1 AS [itemid] ,
                 DATEADD(s, ABS(CHECKSUM(NEWID())) % 1000 + 1,
                    '20120428') AS dtastart
    END
    GO

-- add end times - a random number of seconds after the start time
UPDATE [dbo].[Times]
    SET    [dtEnd] = DATEADD(s, ABS(CHECKSUM(NEWID())) % 1000 + 1, [t].dtstart)
    FROM [dbo].[Times] AS t
go
-- show data
SELECT [dbo].[Times].[itemID] ,
       [dbo].[Times].[dtStart] ,
       [dbo].[Times].[dtEnd] ,
       DATEDIFF(s, [dbo].[Times].[dtStart], [dbo].[Times].[dtEnd]) AS [duration]
    FROM times
    ORDER BY [dbo].[Times].[itemID] ,
       duration
go
-- show aggregated data
SELECT [dbo].[Times].[itemID] ,
       AVG(DATEDIFF(s, [dbo].[Times].[dtStart], [dbo].[Times].[dtEnd])) AS [avg_duration] ,
       SUM(DATEDIFF(s, [dbo].[Times].[dtStart], [dbo].[Times].[dtEnd])) AS [sum_duration]
    FROM times
    GROUP BY [dbo].[Times].[itemID]
you will need to consider whether to use seconds (as I have) or whether minutes or hours or even milliseconds are more useful for you.
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answered Apr 28, 2012 at 11:09 AM

Fatherjack gravatar image

Fatherjack ♦♦
42.6k 75 79 108

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taking your previous sample data, this is the way you'd get the average, and the sum is gotten simply by changing AVG to SUM

    DECLARE @YourTable TABLE (StartTime int,  EndTime int)

    INSERT  INTO @YourTable SELECT  70500, 71002
    INSERT  INTO @YourTable SELECT  120501, 121845


    Select CONVERT(CHAR(8), DATEADD(SECOND, AVG(DATEDIFF(SECOND,
          CONVERT(DATETIME,CONVERT(VarCHAR(02),Starttime/10000)+':'
         +CONVERT(VARCHAR(02),(StartTiME/100)%100)+':'
         +CONVERT(VARCHAR(02),StartTime%100),8),
          CONVERT(DATETIME,CONVERT(VarCHAR(02),Endtime/10000)+':'
         +CONVERT(VARCHAR(02),(EndTime/100)%100)+':'
          +CONVERT(VARCHAR(02),EndTime%100),8))),
       CONVERT(DATETIME, '00:00:00', 113)),8)                   
     AS ElapsedTime
FROM @YourTable
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answered Apr 30, 2012 at 02:23 PM

Phil Factor gravatar image

Phil Factor
3.9k 8 9 16

It will need to be min:Sec
Apr 30, 2012 at 03:14 PM jaymz69
in what sense is my solution not in that format? OK, it will be in hh:mm:ss but you might need that.
Apr 30, 2012 at 03:35 PM Phil Factor
(comments are locked)
10|1200 characters needed characters left
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asked: Apr 27, 2012 at 10:05 PM

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Last Updated: Apr 30, 2012 at 04:02 PM