Forum Discussion
Record Changes
- 9 years ago
Hi Sir_night,
It's obviously there is an order of "Date" for a "Ref" in your scenario. So let's sort the data first, then add an index to keep the orders. Finally, we just need to compare "Status" between "index" and "index + 1".
1. Open "Query Editor", do "Sort Ascending" of "Ref", then do "Sort Ascending" of "Date". There will be two arrows. (blue rectangle). Please don't break the order of ordering. "Ref" first, "Date" second.
2. Add an index.
3. Add a calculated column.
Status changed = VAR NextStatus = CALCULATE ( VALUES ( Table1[Status] ), FILTER ( ALL ( 'Table1' ), 'Table1'[Ref] = EARLIER ( Table1[Ref] ) && 'Table1'[Index] = EARLIER ( Table1[Index] ) - 1 ) ) RETURN IF ( ISBLANK ( NextStatus ), 0, IF ( 'Table1'[Status] = NextStatus, 0, 1 ) )Best Regards!
Dale
- 9 years ago
Hi David,
It would be a little complicated.
Method 1: Add a new column, tag the previous record only. (depend on [Status changed])
Status changed = VAR NextStatus = CALCULATE ( VALUES ( Table1[Status] ), FILTER ( ALL ( 'Table1' ), 'Table1'[Ref] = EARLIER ( Table1[Ref] ) && 'Table1'[Index] = EARLIER ( Table1[Index] ) - 1 ) ) RETURN IF ( ISBLANK ( NextStatus ), 0, IF ( 'Table1'[Status] = NextStatus, 0, 1 ) )Method 2: there are four statuses here. (independant)
0 isn't changed and isn't previous
1 changed and isn't previous
2 isn't changed and previous
3 changed and previous
StatusFlag = VAR LastStatus = CALCULATE ( VALUES ( Table1[Status] ), FILTER ( ALL ( 'Table1' ), 'Table1'[Ref] = EARLIER ( Table1[Ref] ) && 'Table1'[Index] = EARLIER ( Table1[Index] ) - 1 ) ) VAR NextStatus = CALCULATE ( VALUES ( Table1[Status] ), FILTER ( ALL ( 'Table1' ), 'Table1'[Ref] = EARLIER ( Table1[Ref] ) && 'Table1'[Index] = EARLIER ( Table1[Index] ) + 1 ) ) RETURN IF ( ISBLANK ( LastStatus ) && 'Table1'[Status] = NextStatus, 0, IF ( ISBLANK ( LastStatus ) && 'Table1'[Status] <> NextStatus, 2, IF ( ISBLANK ( NextStatus ) && 'Table1'[Status] = lastStatus, 0, IF ( ISBLANK ( NextStatus ) && 'Table1'[Status] <> lastStatus, 1, IF ( 'Table1'[Status] = NextStatus && 'Table1'[Status] = lastStatus, 0, IF ( 'Table1'[Status] = lastStatus && 'Table1'[Status] <> NextStatus, 2, IF ( 'Table1'[Status] <> lastStatus && 'Table1'[Status] <> NextStatus, 3 ) ) ) ) ) ) )Best Regards!
Dale
Sir_night do you have a status change date, to be honest that would be your best bet is have some sort of indicator when its changed.
Power bi is not really a database, its a data visualisation tool, so doing this sort of thing is better done at source or with the right data coming into the model.
In a real world scenario you would need to snapshot the data in order to compare old to new.