The readme.md indicates SCCM App was built with DB Connect 1.1.6. Do we know if DB Connect 1.2 will work?
it might? DB Connect 1.2.0 is DB Connect 1 rebuilt on Java 8. If you've got the JDBC driver and can get into your database, it ought to work. The main reason to do so is to get onto a modern, Oracle-supported Java.