查看表 (View) 是在关系数据库中，将一组查找指令构成的结果集，组合成可查找的数据表的一种数据库对象。与数据表不同的是，数据表是一种实体结构(Physical Structure)，但查看表是一种虚拟结构(Virtual Structure)，在实体数据表中的改变都可以立刻反应在查看表中，不过部份数据库管理系统也支持具更新能力的查看表(Updatable View)。

查看表具有下列的好处：

In database theory, a view is the result set of a stored query on the data, which the database users can query just as they would in a persistent database collection object. This pre-established query command is kept in the database dictionary. Unlike ordinary base tables in a relational database, a view does not form part of the physical schema: as a result set, it is a virtual table computed or collated dynamically from data in the database when access to that view is requested. Changes applied to the data in a relevant underlying table are reflected in the data shown in subsequent invocations of the view. In some NoSQL databases, views are the only way to query data.