Database management systems are today’s most reliable mean to organize data into collections that can be searched and updated. However, many DBMS systems are available on the market each having their pros and cons in terms of reliability, usability, and performance. This poster presents a comparative study on the performance of the Oracle and MySQL. The testing is aimed at executing different SQL queries. This would pave the way to comparative evaluation that shows the average execution time of each DBMS after completion of the test