首页>
外国专利>
Method and apparatus for projecting the effect of maintaining an auxiliary database structure for use in executing database queries
Method and apparatus for projecting the effect of maintaining an auxiliary database structure for use in executing database queries
展开▼
机译:预测维护用于执行数据库查询的辅助数据库结构的效果的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A database management system maintains a record of queries which can be executed against the database. For a given auxiliary database structure, an advisory function automatically reviews the query record and identifies those queries which might execute with greater efficiency using the auxiliary database structure, presenting analytical information to the user. Preferably, the auxiliary database structure is an index, and the information is used for determining whether to include the index in the database definition. Preferably, a query optimizer records potentially useful indexes when considering multiple alternative database optimizations, and this information is later retrieved to identify queries which would benefit from an index.
展开▼