A vector database is a specialized system designed to handle large volumes of unstructured data, such as text, images and audio. Unlike traditional relational databases, which store data in tables with rows and columns, vector databases represent data as points in a multidimensional space. Each dimension corresponds to a specific feature or characteristic of the data. It measures the distance between data points in the space, which enables the user to search and retrieve data based on similarity (or closeness) rather than traditional exact matching.