Thanks, @Dave.
Unfortunately I can’t. In fact, I am reading a .xlsx file, reading it into a datatable (dt1), then I navigate through a webpage, “data scrap” a different table turning it into another datatable (dt2).
Afterwards, I join both tables and set “ok” for all rows. Then, I left join the tables and set “error 1” for all rows and finally I right join the tables and set “error 2” for all rows.
But since you said it shouldn’t take long I’ll keep the for each row then.