topic Re: data model suggestion in QlikView

data model suggestion

harleen_singh — Tue, 17 Dec 2013 07:55:01 GMT

Hello,

i have a fact table in the middle with a Date field and Date field is linked with Ca lander.

I have following fields in Fact table. So here date field is linked with Master Calender

Rno

Date,

Quantity

Now what i want a Flag in a data model where Quantity is greater than 744 in a month for particular RNo. But, if i do group by monthyear than my data model will convert into monthyear level which i don't want. I want to keep my data model into Date level.

What should i do in this case?

thanks

Lavi

Re: data model suggestion

tresB — Tue, 17 Dec 2013 08:12:15 GMT

You can try something like:

TempFact:

Load

Date,

Quantity,

Month(Date) as Month

From <'>;

Left Join

Load Month,

If(Sum(Quantity)>744, 'Y', 'N') as Flag

Resident TempFact Group By Month;

Re: data model suggestion

jagan — Tue, 17 Dec 2013 08:21:33 GMT

HI,

Try like this

Data:

LOAD

MonthName(Date) AS Month

FROM Datasource;

GroupData:

LOAD

Month,

If(Sum(Quantity)>744, 1, 0) as Flag

RESIDENT Data

GROUP BY Month;

If you want to group by RNo also then try this

GroupData:

LOAD

Month,

RNo,

If(Sum(Quantity)>744, 1, 0) as Flag

RESIDENT Data

GROUP BY Month, RNo;

Hope this helps you.

Regards,

Jagan.

Re: data model suggestion

harleen_singh — Tue, 17 Dec 2013 09:00:02 GMT

@jagan you are correct but as i said. if i do this my "FACT"Table will convert into Month year Level?

I also want to keep it into Date level so that i can also see daily details.

thanks

lavi

Re: data model suggestion

jagan — Tue, 17 Dec 2013 09:13:15 GMT

HI,

Here we are not changing the Fact Table, you fact table stays as such, we are not joining the tables and we are just arriving the Flag field in the new table. The new table just has a flag with Month/RNo.

Regards,

Jagan.

Re: data model suggestion

Anonymous — Tue, 17 Dec 2013 20:30:34 GMT

I think tresesco's answer might be best fit for your requirement! Because, it will keep your data model on date level. It just adds extra fields Month and flag to the existing fact table. And this is what you are supposed to ask right!

Re: data model suggestion

harleen_singh — Tue, 24 Dec 2013 10:49:09 GMT

right Vamshi. If you are correct i just need to apply "Left Join" with the fact Table

thanks

Lavi