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dominic_marchan
Contributor III
Contributor III

Field not found error

Hi all,

I have a dataset which contains models with their inventory. Some of these items are composed of child items. So, when looking at inventory, the number you will see next to a parent item is 0. But the number you would want to see is the smallest inventory number of the child item.

I did this query in SQL as a proof of concept and then tried to replicate in Qlik.

 

Here is my attempt:

[Parent]:
LOAD
[Model],
[Inventory]
FROM [lib://AttachedFiles/InventoryData.xlsx]
(ooxml, embedded labels, table is Parent);

[Relationship]:
LOAD
[Model],
[Child]
FROM [lib://AttachedFiles/InventoryData.xlsx]
(ooxml, embedded labels, table is Relationship);


Left join(Parent)
Load *
Resident Relationship;

ParentChild:
Load
[Model] as ParentModel,
[Inventory] as ParentInventory,
[Child] as Model
Resident Parent;

*********error happens here as it says it cannot find Parent model********
Left Join(ParentChild)
Load
ParentModel,
ParentInventory,
min([Inventory]) as ChildInventory
Resident Parent
group By ParentModel, ParentInventory;


InventoryTwo:
Load
ParentModel as Model,
ParentInventory,
ChildInventory
Resident ParentChild;

Left Join(InventoryTwo)
Load
Model,
if(isnull(ChildInventory), ParentInventory, ChildInventory)
Resident Relationship
where isnull(Child);

drop table Parent;
drop table Relationship;
drop table ParentChild;

 

Thanks for the help

Labels (3)
1 Solution

Accepted Solutions
Gysbert_Wassenaar

You create the field ParentModel in the table ParentChild. That field does not exist in the table Parent. So when you do a resident load from the table Parent it won't find that field in that table and that's why you get that error.

Try:

Left Join(ParentChild)
Load
Model as ParentModel,
Inventory as ParentInventory,
min([Inventory]) as ChildInventory
Resident Parent
group By Model, Inventory;


talk is cheap, supply exceeds demand

View solution in original post

1 Reply
Gysbert_Wassenaar

You create the field ParentModel in the table ParentChild. That field does not exist in the table Parent. So when you do a resident load from the table Parent it won't find that field in that table and that's why you get that error.

Try:

Left Join(ParentChild)
Load
Model as ParentModel,
Inventory as ParentInventory,
min([Inventory]) as ChildInventory
Resident Parent
group By Model, Inventory;


talk is cheap, supply exceeds demand