Sqlserver drop primary key關於「ALTER TABLE force MySQL」標籤，搜尋引擎有相關的訊息討論：
MySQL 5.7 Reference Manual :: 13.1.8 ALTER TABLE Statementdev.mysql.com › doc › refman › alter-tableMySQL 8.0 Reference Manual :: 13.1.9 ALTER TABLE Statementdev.mysql.com › doc › refman › alter-tableMySQL 5.7 Reference Manual :: 13.1.8.3 ALTER TABLE Examplesdev.mysql.com › doc