Google 表格中的自动填写在空白单元格处停止

Question

I'm doing VLOOKUP to merge 2 tables: customer_demographics and transactions, using the customer_id column as primary key. ==VLOOKUP(C2, CustomerDemographic:$1,$4001. 10).

Auto-fill stops at blank cells, and there are over 20,000 rows in the transactions table so it's very time-consuming to have to manually drag it down. There are lots of blanks too. Any help?

I haven't tried anything besides dragging it down manually

Answer 1

Have you erased all the data in that column in order to use some arrayformula?, have in mind that if you had previous formulas in other cells, then it won't work. Try this:

=INDEX(XLOOKUP(C2:C,CustomerDemographic!A1:A4001,CustomerDemographic!J1:J4001,,0))

Just in case you weren't aware, in your formula you didn't define if it had to be an exact match (put a 0 at the end of the formula), then if CustomerDemographic isn't sorted you may have some mismatches