Hi All, My problem seems like it should be easy, but I can't seen to determine the correct solution. Each employee has restricted accounts they can not access (have1). What I want to identify from the logs (have2), are those employees who accessed another employee's restricted account.  And the employee whose restricted account was accessed, accessed a restricted account for the employee who accessed their account. I am trying to identify the scenario where if you access my restricted account, I will access your restricted account to bypass the account control. The 2 tables are simplified data examples, but the logic for the solution should be the same for my production data. data have1; length User R_Accounts $2; input User R_Accounts; datalines; AA A1 AA A2 AA A3 BB B1 BB B2 BB B3 CC C1 CC C2 CC C3 ; data have2 length user Acct $2; input id $3 user acct $2 ; datalines; 001 AA B1 002 AA Z2 003 AA Z3 004 BB A1 005 BB Z1 006 BB C2 007 CC B2 008 CC A2 009 CC Z2 010 AA A1 ; Want id   user  acct 001  AA    B1 004  BB    A1 006  BB    C2 007  CC    B2 In the above "Want" results, AA accessed a restricted account of BB, and BB accessed an account for AA. The same for the second pair, BB accessed an account of CC's and CC accessed an account for BB. Thank you, Frank ... View more