topic Re: Date(Date#)) function yields many duplicates in QlikView

Date(Date#)) function yields many duplicates

Fri, 07 Sep 2012 09:25:18 GMT

Hi all,

I am importing from an ODBC server orders with their request date.

I would like to plot this in a chart where the dimension is YYYYMM, whereas the request date in the ODBC field is YYYYMMDD.

Therefore I wrote in the script

Date(Date#(LRDTE, 'YYYYMMDD'),'YYYYMM') AS RqstDte

It turns out fine and dates are imported as YYYYMM.

But, if I look in the list box, all the YYYYMM values are repeated as many times as the number of orders connected to them.

Further, when I plot the chart, of course it displays all these repeated months in the dimension.

It seems like that the Date(Date#)) function formats correctly the date, but indeed keeps stored the 'DD' information hidden somewhere.

Which formula shall I use to have QV sees the dates univocally?

Thank you for your help!

Re: Date(Date#)) function yields many duplicates

brenner_martina — Fri, 07 Sep 2012 09:29:10 GMT

Hi Spacetofu,

yes, that's right, because you only change the format not really the entry of the date. That means, that the complete date is "behind" the YYYYMM. Use the function Monthname or Year(date)&Num(Month(date),'00').

Greetings from Munich

Martina

Re: Date(Date#)) function yields many duplicates

sparur — Fri, 07 Sep 2012 09:30:29 GMT

My be like this:

Date(MakeDate(Year(Date#(LRDTE, 'YYYYMMDD')),Month(Date#(LRDTE, 'YYYYMMDD'))), 'YYYYMM') AS RqstDte

Re: Date(Date#)) function yields many duplicates

whiteline — Fri, 07 Sep 2012 09:31:00 GMT

Both date functions return dual type variable with numeric and text representation.

Date# - gets string and coverts it to dual (with the same text format).

Date - changes only text represenataion (format).

I guess, you should trancate your LRDTE and use Date#(LRDTE, 'YYYYMM') first.

Re: Date(Date#)) function yields many duplicates

Fri, 07 Sep 2012 10:41:28 GMT

If I understood right your approach, I simply wrote

Date#(LRDTE, 'YYYYMM') AS RqstDte

but still it returned dates as YYYYMMDD, sorry, not working!

Re: Date(Date#)) function yields many duplicates

Fri, 07 Sep 2012 10:43:39 GMT

Dear Martina,

thank you for your explanation of the causes of the error.

Your suggestion seemed ok if I look barely at the script, but in the end it returned dates as

5698612

and repaeated values.

I tried to change Number override document setting

date>>YYYY-MM

But still I got a weird format like

17502-04

and, as I said, repeated dates.

but thanks for your inputs!

Schöne Grüße!

Re: Date(Date#)) function yields many duplicates

brenner_martina — Fri, 07 Sep 2012 10:43:40 GMT

Hi,

you can use this script:

Table2:

LOAD Distinct Year(date)&Num(Month(date),'00')

Resident Table1;

Greetings from Munich

Martina

Re: Date(Date#)) function yields many duplicates

Fri, 07 Sep 2012 10:44:52 GMT

When I was reading this, it seemed just so right.

With that MakeDate command, it seemed I could achieve jsut what I wanted, a "brand new" field which contains just 6 characters YYYYMM.

Indeed it is like this, flawless!

thank you!

Re: Date(Date#)) function yields many duplicates

whiteline — Sat, 08 Sep 2012 08:19:51 GMT

Hi spacetofu,

First trancate the string so that in contains only YYYYMM then use Date#.

Re: Date(Date#)) function yields many duplicates

Wed, 11 Sep 2013 17:29:07 GMT

I did find this to work for an Good Receipt Date that was coming in from database as formatted like this '20130115' or YYYYMMDD. QV surely did recognize it as a string and the code above from Anatoly worked.

Re: Date(Date#)) function yields many duplicates

adamhutch — Tue, 14 Feb 2023 20:59:10 GMT

This works to get year and month, but how would you reduce the duplicate individual dates?