topic Re: IterNo in QlikView

IterNo

runesson — Sat, 16 Nov 2024 21:00:29 GMT

I have a table with the field Startdate, the table also includes fields for prices and priceid which have diffrent startdates.
For example it looks like this:
Startdate Price PriceID
2018-01-01 55 123456
2018-05-01 60 123456

Im trying to use IterNo to make the result like this:
Startdate Price PriceID
2018-01-01 55 123456
2018-02-01 55 123456
2018-03-01 55 123456
2018-04-01 55 123456
2018-05-01 60 123456
2018-06-01 60 123456
and so on.

This is what I have done:

LOAD
Date(MonthStart(STARTDATE, IterNo()-1)) as Datum

From
While MonthStart(STARTDATE, IterNo()-1)<=MonthStart(STARTDATE)

What I think needs to be done is to change the last STARTDATE in the While statement but cant figure it out.
Also need to use ConvertToLocalTime on STARTDATE but dont know how to when using Date(Monthstart(..

Re: IterNo

jonathandienst — Tue, 23 Apr 2019 13:22:52 GMT

Something like this:

// Load the data from the source
Source:
LOAD STARTDATE, Price, PriceID
FROM ...

// Create tables of dates (months)
Data:
LOAD AddMonths(MinDate, IterNo() - 1) as Month
Where AddMonths(MinDate, IterNo() - 1) <= MaxDate;
LOAD Min(STARTDATE) as MinDate,
	Max(STARTDATE) as MaxDate
Resident Source;

// Interval match the source into the date table (backwards)

Join(Data)
IntervalMatch(Month)
LOAD STARTDATE as From, 
	Alt(Previous(STARTDATE) - 0.1, MakeDate(2999)) as To
Resident Source
ORDER By STARTDATE DESC;

// Optional: bring the price information into the Data table

Join(Data)
LOAD STARTDATE as From, 
	Alt(Previous(STARTDATE) - 0.1, MakeDate(2999))
	Price,
	PriceID
Resident Source
ORDER By STARTDATE DESC;

// Clean the unneeded elements (if the optional second join is used)
DROP Fields From, To;
DROP Table Source;

Re: IterNo

runesson — Wed, 24 Apr 2019 07:31:48 GMT

That didnt change anything, the result I get is the same as before..