Get values from other sheet based on other cell values

Question

How to get values from another sheet if another cell empty. I'm trying to get values from sheet1 column B if in sheet1 column H empty.

I mean if Sheet1 column B2 to B4 have values and in Column H on the same sheet, if H2 and H3 have text only B4 value print.

Sheet1 Image

Sheet2 Image

Here is what I try to do that not work

=query(Sheet1!B2:B, "Select Sheet1!b where Sheet1!H <> ''")

Answer 1

try:

=FILTER(Sheet1!B2:B, Sheet1!B2:B<>"", Sheet1!C2:C="")

or:

=QUERY(Sheet1!B2:C, "select B where B is not null and C is null", 0)

or:

=QUERY(Sheet1!B2:C, "select B where B !='' and C =''", 0)