topic Require help with incremental load when dimension changes in App Development

Require help with incremental load when dimension changes

Kalmer — Mon, 11 Jun 2018 16:31:05 GMT

Hello!

I'm sturggling to get my code to work. Please help me out guys.
The issue is that i want to increase the value of the dimension "NewField" everytime the LineNr changes also the field "Controll" is there to let me know when i should increase the the value of the dimension.
The red defines how it should be done.
Honestly the Peek function for NewField is not working at all, only the rangesum gives me any result.

concatenate(MasterTable)

Load

'Journey' as Fact,

if(Controll=1, RangeSum(1, peek(NewField)+1),

if(Controll=0, RangeSum(1, peek(NewField)), Peek(NewField))) as NewField,

;

Load

if(Previous(_KEY_ProductID_TS_LineNr) = _KEY_ProductID_TS_LineNr, 0, 1) as Controll

Resident tmp_Jour2

order by Timestamp, ProductID, LineNr. asc;

Any help is greatfully accepted!

Re: Require help with incremental load when dimension changes

felipedl — Mon, 25 Jun 2018 15:51:57 GMT

Hi Kalmer,

I've made a simple example with some dummy data:

x:
load
Fact,
Date,
TimeStamp,
date(Date + TimeStamp,'DD/MM/YYYY hh:mm:ss') as FormattedDate,
LineNr,
ProductID;
load * Inline
[
Fact,Date,TimeStamp,LineNr,ProductID
Journey,01/01/2018,10:05,a,28BE0
Journey,01/01/2018,10:07,a,28BE0
Journey,01/01/2018,10:13,b,28BE0
Journey,01/01/2018,10:25,a,28BE0
Journey,01/01/2018,13:05,c,28BE0
Journey,01/01/2018,16:05,a,28BE0
Journey,01/01/2018,19:00,a,28BE0
Journey,01/01/2018,22:00,d,28BE0
];


Control:
Load
Fact,
Date,
TimeStamp,
date(Date + TimeStamp,'DD/MM/YYYY hh:mm:ss') as FormattedDate,
LineNr,
ProductID,
Control,
if
(
isNull(peek(NewField)),
1,
if
(
Control=1,
peek(NewField)+1,
peek(NewField)
)
) as NewField;
load
*,
if (peek(LineNr)=LineNr,1,0) as Control
Resident x
order by FormattedDate;


drop tables x;

The above script gives me the following:

Felipe.

Re: Require help with incremental load when dimension changes

Kalmer — Thu, 06 Sep 2018 11:14:21 GMT

Thank you Felip. I managed to solve with a work around.
IsNull() function was used in this case aswell.