Databases play a fundamental role in the functioning of virtual reality ecosystems by managing vast amounts of data in real-time. This article explores the types of databases commonly used in VR, such as relational databases for structured data, graph databases for mapping relationships in virtual environments, and distributed databases for scalability across global users. It examines how databases handle user profiles, 3D model storage, and event logging, ensuring a seamless user experience. Additionally, it discusses the technical challenges of integrating databases with VR systems, including latency, storage optimization, and query efficiency. The article concludes with an analysis of future trends, such as AI-driven data management, the use of blockchain for decentralized data storage, and the increasing reliance on cloud-based solutions to support large-scale virtual worlds.