waterye

[转载]当function应用在索引列时使用索引

Everyone who has worked with Oracle knows that the optimizer will not use an index if a function is applied to the indexed column.

http://awads.net/wp/2005/11/29/oracle-sql-tip/

posted on 2005-11-30 11:47 waterye 阅读(414) 评论(0)  编辑  收藏 所属分类: oracle


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