SQL 中的视图和物化视图
原文英文，约700词，阅读约需3分钟。发表于：。Views in SQL A view in SQL is a virtual table based on a result set of a SQL query. It doesn't store data itself but dynamically retrieves data from the underlying tables whenever it is queried....
视图是基于查询结果的虚拟表，不存储数据，适合实时数据展示和安全需求。物化视图存储数据，提高查询性能，适合数据不常变的场景。视图简化查询，物化视图需定期刷新以保持数据新鲜。
