Oracle DROP INDEX關於「Oracle table index query」標籤，搜尋引擎有相關的訊息討論：
Query takes longer to run with indexes. - Oracle Communitiescommunity.oracle.com › ... › SQL & PL/SQL3 Indexes and Index-Organized Tablesdocs.oracle.com › server.112 › indexiotHow to Create and Use Indexes in Oracle Databaseblogs.oracle.com › sql › post › how-to-create-and-