Query tables in conjunction with materialized views perform well, but they use native database joins to retrieve the related records.
将查询表与物化视图结合使用会带来很好的性能，但是它们使用本机数据库联接来检索相关记录。
2
An operator class is used in conjunction with the access method to specify the operators used for building the index and during query optimization.
将操作符类与访问方法结合使用，可以指定创建索引和优化查询时使用的操作符。
3
This control is provided in the form of the ORDER BY clause in conjunction with the order in which table qualified column names appear in the query elements table.