關於「Oracle drop primary key constraint and index」標籤，搜尋引擎有相關的訊息討論：

How to Drop Primary Key in Oracle - Ed Chen Logiclogic.edchen.org › how-oracle-drop-primary-keyDROP PRIMARY KEY doesn't drop the UNIQUE INDEXcommunity.oracle.com › threadDrpping primary key constraint - Ask TOMasktom.oracle.com › pls › apexALTER TABLE DROP PRIMARY KEY CONSTRAIN