Forum Discussion
Time Difference Between two resources
Hi Kumar11109
I entered the following data to create your table
Session ID Resource ID Start Time End Time 1 11 18:15:30 18:17:35 1 12 18:19:17 18:21:21 1 13 18:23:04 18:25:07 1 12 18:26:51 18:28:53 2 11 18:30:38 18:32:39 2 13 18:34:25 18:36:25 2 12 18:38:12 18:40:11 3 11 18:41:59 18:43:57 3 12 18:45:46 18:47:43 3 13 18:49:33 18:51:29 4 15 18:53:20 18:55:15 4 11 18:57:05 18:59:01 4 15 19:00:54 19:02:47 4 12 19:04:41 19:06:33
and then applied these steps in the Query Editor
let
Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("ZZBbDoQgDEX3wrcfpQ+QuxXj/rcxFa+DmUmIOamH9tLjKLVspc7PjhowIXZYlHOjoKyO/HGj1jxLMFYN4sSA9L8O2hCcpjvCpqCvDCawnaiwsQSOMM/WxHbhV+AIy5xEF9Q7pL1GeEUMoiH6Ep5rAW/Ens4SmMEHjBi5hzvkfDeThUG5yYjc6xKYITrkcQek/nTIkiCcqBljCcqq50OI7Ypznh8=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [#"Session ID" = _t, #"Resource ID" = _t, #"Start Time" = _t, #"End Time" = _t]),
#"Changed Type" = Table.TransformColumnTypes(Source,{{"Session ID", Int64.Type}, {"Resource ID", Int64.Type}, {"Start Time", type time}, {"End Time", type time}}),
#"Sorted Rows" = Table.Sort(#"Changed Type",{{"Session ID", Order.Ascending}, {"Resource ID", Order.Ascending}, {"End Time", Order.Ascending}}),
#"Added Index" = Table.AddIndexColumn(#"Sorted Rows", "Index", 0, 1),
#"Added Index1" = Table.AddIndexColumn(#"Added Index", "Index.1", 1, 1),
#"Merged Queries" = Table.NestedJoin(#"Added Index1",{"Index.1"},#"Added Index1",{"Index"},"NewColumn",JoinKind.LeftOuter),
#"Expanded NewColumn1" = Table.ExpandTableColumn(#"Merged Queries", "NewColumn", {"Session ID", "Resource ID", "Start Time"}, {"NewColumn.Session ID", "NewColumn.Resource ID", "NewColumn.Start Time"}),
#"Added Custom" = Table.AddColumn(#"Expanded NewColumn1", "Custom", each if ([Session ID] = [NewColumn.Session ID] and [Resource ID] = [NewColumn.Resource ID])
then [NewColumn.Start Time] - [End Time]
else 0),
#"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Index", "Index.1", "NewColumn.Session ID", "NewColumn.Resource ID", "NewColumn.Start Time"}),
#"Renamed Columns" = Table.RenameColumns(#"Removed Columns",{{"Custom", "Time Spent"}})
in
#"Renamed Columns"Which resulted in the following table
Phil_SeamarkI don't think so this is what I want. If you look at the column "Time Spent" and the difference between end time for resource 11 and start time for resource 12 is 00:1:53 seconds and not 5 mins and 30 seconds.
This is the problem, I hope I am a bit more clear now.
Thank You for your quick reply BTW.
And it would be really appreciated if we can do this without going into the query, if possible and by just adding a column.
Thank You,
Kumar Ashwarya
Hi Kumar Ashwarya,
According to your conditions, the records in this table should have an order. So firstly, we add an index column. Then we can use this formula in calculated column to get the time spent.
TimeSpent = VAR NextStartTime = CALCULATE ( MIN ( Table1[Start Time] ), FILTER ( Table1, Table1[Index] >= EARLIER ( Table1[Index] ) + 1 && Table1[Session ID] = EARLIER ( Table1[Session ID] ) ) ) RETURN IF ( ISBLANK ( NextStartTime ), BLANK (), NextStartTime - Table1[End Time] )Ps: 1. Column NextStartTime is just to show the process, you don’t need to add it.
2. Pay attention to the data type.
I tried using your method, but it is showing errors.
The error is "Token Eof expected".
Do I need to create this column out of the query or in the query editor only?Hi,
We add index in the Query Editor. And then add a calculated column in the table with the formula. These two steps are performed in different place. The error showed whether you were in the wrong places or you missed some parenthesis (usually right parenthesis). Please check it out.
Best Regards!
Dale
