Guru: Use SQL To Find Duplicate Source Code

I used SQL. It may seem strange to use SQL for source code ... with source as (select s.srcseq, s.srcdta from qtemp.tempalias as s where substr(s.srcdta,7,1) <> '*' and substr(s.srcdta,8 ) <> ' ' and substr(s.srcdta,6,1) = ' ') select a.srcseq, b.srcseq ...