In PROLOG database stored are clauses comprising PROLOG procedures and other long-term data structures represented as clauses. The implementation techniques for the manípulation of clauses are very important for PROLOG'S being a powerful AI language. It is even more the case when considering the storage of compiled clauses. With the supports of YH-SIM architecture，we propose a new structured organization for compiler-based PROLOG database，and present a simple and efficient management strategy that a procedure is the unit for claiming，and a clause the unit for dooming. Also different schemes for clause representation in the database are investigated briefly.