Yahya, M.H., Satriaji, Gathan and Zaki 2026. Optimizing the Execution Time of JOIN Queries and Subqueries Using MySQL. Journal of Artificial Intelligence and Engineering Applications (JAIEA). 5, 2 (Feb. 2026), 2413–2420. DOI:https://doi.org/10.59934/jaiea.v5i2.1872.