Vector search is essential for AI-driven applications like semantic search, personalization, and retrieval-augmented generation, but its effectiveness hinges on databases that can handle high-dimensional embeddings while ensuring transactional integrity and global scalability. Key features to seek in such databases include native support for vector data types, sub-linear similarity search, hybrid query capabilities, transactional consistency, and global distribution to ensure low-latency AI inference. A unified platform that integrates vectors with operational data can simplify development and reduce complexity, allowing teams to focus on innovation and performance. CockroachDB is highlighted as a cloud-native distributed SQL database that supports real-time vector workloads with features like PostgreSQL-compatible native vector search and C-SPANN indexing, offering a scalable, consistent, and high-performance solution for AI applications.