關於「Oracle select index」標籤，搜尋引擎有相關的訊息討論：

Query takes longer to run with indexes. - Oracle Forumsforums.oracle.com › ords › apexds › post › query-takes-lo...Select columns of table index - sql - Stack Overflowstackoverflow.com › questions › select-columns-of-table-i...How to Create and Use Indexes in Oracle Databaseblo