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

Dropping constraints - IBMwww.ibm.com › com.ibm.db2.luw.admin.dbobj.doc › docDropping primary keys - IBM DB2 9.7 for Linux, UNIX, and Windowswww.ibm.com › docs › topic=center-dropping-primary-keysDelete Primary Keys - SQL Server - Microsoft Learnlearn.microsoft.com › ... › Tabl