Description: A virtual schema is a concept in the field of databases that refers to a logical structure that is not physically stored in the system but is defined based on data from other existing schemas. This type of schema allows users to interact with data more flexibly and efficiently, as it can combine and present information from multiple sources without the need to duplicate data. Virtual schemas are particularly useful in environments where data integration is crucial, such as in data management and analytics applications. By not requiring physical storage, virtual schemas can quickly adapt to changes in the underlying data, facilitating the management and access to information. Additionally, they allow the creation of customized views that can be used by different users or applications, thus optimizing the data querying and analysis experience.
