Database Forensic Investigation (DBFI) discipline has been utilizing in identifying, collecting, preserving, analyzing, reconstructing and documenting database crimes. DBFI knowledge has scattered anywhere and has not ever an obvious structure to managing it. This study makes survey of several DBFI knowledge process models, algorithms, methods, artifacts and tools offered till date. The functionality of many DBFI analysis algorithms and several DBFI artifacts available for forensics investigator are discussed. The DBFI challenges and issues are highlighted. The significance of this study is that it presents conceptual investigation process model and an overview on DBFI knowledge covering algorithms, process models, methods and artifacts forensics, which will be very much useful for DBFI users, practitioners and researchers in exploring this upcoming and young discipline.