Mahmoud Mohammed E, عصام, F.S. AL_Mukhtar A, الاء. Measuring of Oracle Optimizer Performance for Object-Relational Database Entities. RJCSM [Internet]. 2025 Jun. 25 [cited 2025 Aug. 5];5(2):125-40. Available from: https://rjps.uomosul.edu.iq/index.php/csmj/article/view/19933