If then else in the same field.

Hello All,

I have '2 fields' VOKNT & BISKT which have "Range of Account Numbers" and another field which is the description of those fields..Refer the screen shot below.

My Requirement is to map the above "TXT45" field to another table which contains the list of all Account numbers with respect to the below field range.

And the keys fileds are VERSN and VONKT\BISKT ..and there will be no VERSN field in my Source table ,So from here I should take only one TXT45 filed based on VERSN value = (some specific value) from above screeshot to pass to the Acc Field in my source,if that value not exists the I should go with next,like wise I have 4 priority values ,If my priority values are not in the above VERSN then I should pass TXT45 as NUll.

EX : If VONKT : BISKT

          60315      60320    then my TXT45 field should map with all the Acc Number between the 60315 to 60320.

So ,If anyone could suggest me a way it would be a great help.

Regards,

Srinivas.