Hello,

I've created a datawindow (dw_data) with select consisting on 2 tables like:

Select 
          tab1.symbol,
          tab1.desc,
          tab2.id,
          tab2.fk1,
          tab2.fk2,
          tab2.status,
          etc...
From tab1,

         tab2
where tab1.id=tab2.id

On datawindow visible are only kolumns from tab1, and rest is used on update properties:

Unique Key Column(s): tab2.id
Updatable Columns: tab2.fk1, tab2.fk2, etc...

There is a button "Add" which add row into dw and sets columns:
tab1.symbol,
tab1.desc,
tab2.id,
tab2.fk1,

and then im trying to save it to database,everything looks fine but datastore::setchanges throws me -3 which is column mismatch.
I've done many dw, i've got many errors but this got me really stuck.

Does anyone have an idea?
Thanks!