外联接 meaning in English

outer join

Ri ri right outer join
右向外联接
Old - style outer joins
旧式外联接
Right outer join
右向外联接
For example , a complex query that is used for reporting purposes and performs subqueries , outer joins , and aggregation to retrieve data from a group of tables can be created as a view
例如，可以将一个用于报表目的且执行子查询、外联接和聚合来从一组表中检索数据的复杂查询创建为视图。