I'd like to have this population logic built in an Access database I have the "mapping" table in Column Start, End, Bucket), then have the values in (My Values) column. I can populate the bucket for (My values) column in excel easily via vlookup, but want to be able to do the same via Access. The Only solution i can think of is a loft of IIF () function, but that's messy and not classy. Cheers for your help in advance. All the Best, Granady EDIT: These are two seperate tables. Start/End/Bucket is Table1 and Table2 is where i have "My values", and where i would want the Bucket to be populated based on Table1 values. Start End Bucket My values Bucket (populated via vlookup) 0.00 0.08 1 7.416438356 22 0.08 0.16 2 7.416438356 22 0.16 0.25 3 7.416438356 22 0.25 0.33 4 7.416438356 22 0.33 0.41 5 0.252054795 4 0.41 0.49 6 0.750684932 10 0.49 0.58 7 0.504109589 7 0.58 0.66 8 0.504109589 7 0.66 0.74 9 0.504109589 7 0.74 0.82 10 9.690410959 22 0.82 0.90 11 0.504109589 7 0.90 0.99 12 0.504109589 7 0.99 1.23 13 0.706849315 9 1.23 1.48 14 0.504109589 7 1.48 1.73 15 1.504109589 15 1.73 1.97 16 0.567123288 7 1.97 2.22 17 0.504109589 7 2.22 2.47 18 0.753424658 10 2.47 2.71 19 85.56164384 24 2.71 2.96 20 1.482191781 15 2.96 5.00 21 2.994520548 21 5.00 10.00 22 3.594520548 21 10.00 25.00 23 99 24 25.00 101.00 24 0.504109589 7