Qlikview - join two table - join

Question

i need to join two table in Qlikview to get result.
Table:
I need to join this two table to get result table like this
Any idea? Can i use cross table and how?

Answer 1

For Table1 you can use CrossTable functionality to "rotate" the table but keeping the first column.
For example:
CrossTable(Location, Quantity)
Load
Reason,
LocA,
LocB
From
[Data.xlsx] (ooxml, embedded labels, table is Table1)
;
The result table after this will be:
Location Reason Quantity
LocA R1 5
LocA R2 4
LocA R3 5
LocA R4 3
LocB R1 2
LocB R2 2
LocB R3 3
LocB R4 5
(you can learn more about CrossTable at Qlik's help site - CrossTable)
After having Table1 in this format you can create composite key (as x3ja suggested). Composite key is basically two (or more) fields concatenated. In your case the join between the tables should be on two fields - Location and Reason.
// CrossTable the data to get it in correct format
Table1_Temp:
CrossTable(Location, Quantity)
Load
Reason,
LocA,
LocB
From
[Data.xlsx] (ooxml, embedded labels, table is Table1)
;
// Resident load to form the composite key
// based on Location and Reason fields
Table1:
Load
Location & '|' & Reason as Key,
Quantity
Resident
Table1_Temp
;
// We dont need Table1_Temp table anymore
Drop Table Table1_Temp;
//Load the second table and create the same composite key
Table2:
Load
Location & '|' & Reason as Key,
Location,
Reason,
Answer
From
[Data.xlsx] (ooxml, embedded labels, table is Table2)
;
After the reload your data model will look like:
And the data:
Notice that the values for Answer, Location, Reason are null in the bottom two rows. This is because the data in Table2 (based on your screenshots) don't contains combination for LocB and R2 and LocA and R4 but Table1 does.
If you want to keep only the combinations that are present in both tables then the approach is similar but with two differences:
Table2 should be loaded first
use keep function to exclude the non common records for being loaded in Table1
(keep at Qlik's help site - keep)
If you want to see the script in action just comment the first tab and uncomment the second one in the example qvw

Answer 2

There are a couple of ways you could do this.
Using association. Load Table 1 twice and concatenate, creating a composite key. So you'd end up with fields ReasonLocation and Quantity. Then load Table 2 creating the same composite key, giving you ReasonLocation, Location, Reason & Answer. Then the tables would associate on that composite key.
Using a join. Load Table1, left join in Table 1 based on Reason with an if statement like if [Location] = 'LocA' then [LocA] else [LocB]. That may need you to load it into a temp table first and do the if statement in a resident load.
You could also combine the two and join the tables in #1 based on the ReasonLocation field.
Hope that helps - sorry it's not fully worked through...