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

DROP PRIMARY KEY doesn't drop the UNIQUE INDEXcommunity.oracle.com › threadDrop primary key — oracle-techcommunity.oracle.com › ... › SQL & PL/SQLdrop primary key constraint - SQL & PL/SQL - Oracle Forumsforums.oracle.com › apexds › map › tech › discussion › dr...Drppin