 # Days Interval

Hi,
What is the expresssion to get this days interval?
In Excel it is similar to end date - start date:

I need to determine the number of days between orders as below and put it in interval days column.
Key . Timestamp minus Key . Timestamp above it.
Example: 4/23/2020 - 4/9/2020 = 13.1 Days Thanks

2 Likes

Hello @reggieneo,

You could use App formula.

[orders] - [interval] /24

Thanks,
VInit

Hi, i have used spreadsheet formula to get that interval column value.

i would like to get that interval from appsheet expression so i can limit the use of spreadsheet formula.
the challenge is i need to do calculation like [_Thisrow].[Timestamp]-[the timestamp row above thisrow timestamp].
like this image: I believe the AppSheet expression will be a bit longish and something like below you may wish to try

DECIMAL(HOUR(MIN(SELECT(Table Name[Timestamp],
IF(MAX(Table Name[_RowNUMBER])=[_THISROW].[_ROWNUMBER], [_ROWNUMBER]= [_THISROW].[_ROWNUMBER], [_ROWNUMBER] > [_THISROW].[_ROWNUMBER])))-[Timestamp]))/24.00

Please test well. Expression assumes that new records will alsways be added in higher number rows.

Edit: Also the above expression is based on rownumbers ,so assumes there will be not row delete and balnk rows.I believe, you may need to replace [_ROWNUMBER] with possibly [Timestamp] itself or a column that keeps track of row addition sequence.

Please try below as well, not tested though.

DECIMAL(HOUR(MIN(SELECT( Table Name [Timestamp],
IF(MAX( Table Name [Timestamp])=[_THISROW].[Timestamp], [Timestamp]= [_THISROW].[Timestamp], [Timestamp] > [_THISROW].[Timestamp])))-[Timestamp]))/24.00

1 Like

Hi Suvrutt,
it calculated the row where it is supposed to be 0 or blank :please see image:

it went one row up, and since the the most top row has no previous timestamp (timestamp above it) it should be 0 interval as this is the beginning of the row.

thanks.

Try:

``````(
TOTALHOURS(
[Timestamp]
- ANY(
SELECT(
table[Timestamp]
(
[_ROWNUMBER]
= MAX(
SELECT(
table[_ROWNUMBER],
([_ROWNUMBER] < [_THISROW].[_ROWNUMBER])
)
)
)
)
)
)
/ 24.0
)
``````

Replace `table` (twice) with the name of the table.

2 Likes

DeCIMAL(HOUR([Timestamp]- MAX(SELECT(Table Name[Timestamp],
IF(MIN(Table Name[Timestamp])=[_THISROW].[Timestamp], [Timestamp]= [_THISROW].[Timestamp],
[Timestamp]< [_THISROW].[Timestamp])))))/24.00

1 Like

Nice use of TOTALHOURS() function @Steve

Makes the expression much compact. 1 Like

Hi,
Steve’s works when i put comma after Table[Timestamp]. but it gave an 18,000 plus answer on the most top part , the rest of the rows are correct intervals.

Suvrutt’s works all the way form top to bottom.

I think I can mange to understand these expression i need for this issue.

thanks both of you Gents.

1 Like

Whoops!