All COBOL shops have developed what could be called their own frameworks from scratch over the years. Learn COBOL and DB2/SQL. If you end up working on mainfram

All COBOL shops have developed what could be called their own frameworks from scratch over the years. Learn COBOL and DB2/SQL. If you end up working on mainframes. JCL as well. If on AS/400. RPG and ACL. Most developers don't really have to know much else then COBOL. Just type in a editor, run commands, done.