Matching

[SASPhile]

there are two files Master and Target:

Master has id1 and id2 and flag fields.
id1 is a 16 digit number
id2 is a 18 digit number
flag is a 1 digit number

Target has id1 and id2 fields.

Now we need output for the following conditions:
if id1 in both datasets are equal

or

if id2 match (i.e all 18 digits)
or if first tweleve digits and last five digits of id2 in both files match
or if first tweleve digits of id2 match and flag is equal to 1

[Tom · Accepted solution]

You will need to store ID2 as CHARACTER because floating point numbers cannot accurately store 18 digits.

proc sql noprint;

create table want as

select *

from master(rename=(id1=master_id1 id2=master_id2)) m

    , target(rename=(id1=target_id1 id=target_id2)) t

where master_id1 = target_id1

   or master_id2 = target_id2

   or (substr(master_id2,1,12) = substr(target_id2,1,12)

      and (substr(master_id2,14) = substr(target_id2,14)

           or m.flag = 1 )

      )

;

quit;

[SASPhile]

Thanks Tom!