Dsum its ok, bu I have more difficult situation (dont know is possibble to use Dsum Function?)
I Have 4 Tables:
TABLE1 with Columns (ID1, Col1)
TABLE2 with Columns (ID2, Col2A,col2B)
TABLE3 with Columns (ID3, Col3)
TABLE4 with Columns (ID4, Col4)
Col1 have relationship (one to many) with ID2
Col2A have relationship (one to many) with ID3
Col2B have relationship (one to one) with Col4
strSQL "SELECT SUM (Col1*Col4) FROM TABLE2 INNER JOIN TABLE3 ON TABLE2.Col2A = TABLE3.ID3 INNER JOIN TABLE4 ON TABLE2.Col2B = TABLE4.Col4 INNER JOIN TABLE1 ON TABLE2.ID2 = TABLE1.Col1 WHERE (ID3 = ' " & FORM.txtbox & " ')"
Is it possible convert it to Dsum?