是否可以使用两个标准单元格从第三列返回值？

Question

I have an Google sheets file with two sheets. I'm trying to reference one sheet's text based on two cells of criteria using a formula in the other sheet. I have one sheet that looks similar to this -

And another that looks like this -

I would like to put a formula on the second sheet that basically says - look on the first sheet for the values in columns A and B and return me the value in column C. The tricky part is - the values in the second sheet may be inverted or there may be an instance where only one value is present, like in row 1 in the first sheet. Also the formula should only fill in a value if both columns match. All text combinations in both sheets are unique.

Is it possible to do this with text? Thank you for your help!

Answer 1

Try the following

=ArrayFormula((IFERROR(VLOOKUP(R2:R&S2:S,{O2:O&P2:P,Q2:Q},2,0))&
               IFERROR(IF((R2:R<>"")*(S2:S<>""),VLOOKUP(R2:R&S2:S,{P2:P&O2:O,Q2:Q},2,0),""))))

(Do adjust locale and ranges according to your needs)

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Functions used:

• ArrayFormula
• IFERROR
• IF
• VLOOKUP

Answer 2

If you can use two keys concated in the lookup table as a virtual key (ie make a key like "CAT|DOG"), then you can use that to look in the secondary table.

If you can't guarantee the sort order of the two keys in the secondary table, you can use the following technique to "sort" the two keys so you can make a single lookup key that's always in one stable order.

Sample Table

A	B	C	D	E	SortedKey
Cat	Dog	TRUE	Cat	Dog	CatDog
Dog	Cat	FALSE	Cat	Dog	CatDog

Formulas

Sample formulas for row #1.

• For column C, use formula: =A1<B1
• For column D, use formula: =IF(C1=TRUE, A1, B1)
• For column E, use formula: =IF(C1=TRUE, B1, A1)
• For SortedKey, use formula: =concat(D1, E1)