topic Row number in QlikView

Row number

MindaugasBacius — Tue, 11 Oct 2016 10:48:11 GMT

Hello

Simple question.

I have a table:

Date	Info
2016-09-30	A
2016-10-31	A
2016-11-30	A
2016-09-30	B
2016-10-31	B
2016-11-30	B

I do need this:

Date	Info	Number
2016-09-30	A	1
2016-10-31	A	2
2016-11-30	A	3
2016-09-30	B	1
2016-10-31	B	2
2016-11-30	B	3

Thank you

Re: Row number

sunny_talwar — Tue, 11 Oct 2016 10:49:15 GMT

May be like this:

AutoNumber(RecNo(), Info) as Number

Re: Row number

MindaugasBacius — Tue, 11 Oct 2016 11:07:19 GMT

Do you have any other solutions as this one increased the loading time dramatically?

I could live with this but I would like to be sure that this method is most efficient. Thanks.

Re: Row number

sunny_talwar — Tue, 11 Oct 2016 11:13:42 GMT

Not sure if this is going to be any better, but this is the other option. If the data is already sorted, then you might not need to create FinalTable and should be able to create Number field within Table.

Table:

LOAD Date,

Info

FROM

[https://community.qlik.com/thread/235909]

(html, codepage is 1252, embedded labels, table is @1);

FinalTable:

LOAD Date,

Info,

If(Info = Previous(Info), RangeSum(Peek('Number'), 1), 1) as Number

Resident Table

Order By Info, Date;

DROP Table Table;

Re: Row number

MindaugasBacius — Tue, 11 Oct 2016 11:33:47 GMT

This solution works faster.

Re: Row number

sunny_talwar — Tue, 11 Oct 2016 11:35:03 GMT

Did not know AutoNumber performed that poorly. Thanks for updating mindaugasbacius‌