Match-Merge on different variables

[HarryT]

I have two datasets. One our own and the other a clients. I need to match them. However in our dataset we use Account_Number and the client uses BANKACCOUNT. I need match what accounts are in both datasets to produce a matching dataset and a non-matching dataset for Reconciliation purposes. How can this be done? Thanks 

Below is my code which does not work

data Match No_Match;
Merge Dataset1 Dataset2;
by ACCOUNT_NUMBER BANKACCOUNT;
if ina and inb then output Match;
else output No_Match;
run;

[Reeza]

You have to RENAME the variable for this to work in a data step merge, the variable name needs to be the same. If you merge with SQL you can have different names.

[Astounding]

Just to clarify ...

In a MERGE, you don't need to rename ahead of time.  You can do it on the fly, as you merge:

data Match No_Match;
Merge Dataset1 Dataset2 (rename=(BANKACCOUNT=ACCOUNT_NUMBER));;
by ACCOUNT_NUMBER;
if ina and inb then output Match;
else output No_Match;
run;

If both variables are character, make sure they have the same length.  There are ways to correct the problem if the lengths are different, but length is an issue that should not be ignored.