Filling missing dates in a table

twanqlik — Mon, 28 Oct 2019 16:32:43 GMT

In the first table below is what is currently available for 1 particular customer in our customer database.

In the second table is what i would like to create.

All the in between dates need to be filled based on the calendar, and it needs to pick up the first status till the status changes.

Has someone an idea how to do this? 🙂

Available data:

Customer ID	Status	Date
1	No	20-Mar-19
1	Yes	17-Mar-19
1	No	14-Mar-19
1	Yes	13-Mar-19
1	No	10-Mar-19

Desired output:

Customer ID	Status	Date
1	No	20-Mar-19
1	Yes	19-Mar-19
1	Yes	18-Mar-19
1	Yes	17-Mar-19
1	No	16-Mar-19
1	No	15-Mar-19
1	No	14-Mar-19
1	Yes	13-Mar-19
1	No	12-Mar-19
1	No	11-Mar-19
1	No	10-Mar-19

Re: Filling missing dates in a table

lironbaram — Mon, 28 Oct 2019 17:23:13 GMT

this script

will do the trick foryou

[Table]:
Load *,
date(date#([Date],'DD-MMM-YY')) as startDate ;
LOAD * INLINE
[
Customer ID,Status,Date
1,No,20-Mar-19
1,Yes,17-Mar-19
1,No,14-Mar-19
1,Yes,13-Mar-19
1,No,10-Mar-19
](delimiter is ',');

/// adding the end date for each date

Table2:
load * ,
date( startDate + iterno()-1) as DateList
while date( startDate + iterno()-1) < endDate;
load *,
if(IsNull(Previous(startDate)),startDate+1,previous(startDate)) as endDate
resident Table
order by [Customer ID], startDate DESC;

drop Table Table;

topic Filling missing dates in a table in QlikView

Filling missing dates in a table

Re: Filling missing dates in a table