数据库建表时复合主键

[weixin_38069570]

如果我想指定id为主键，那么建表的语句是这样的query.exec("CREATE TABLE IF NOT EXISTS linkedApplication (id VARCHAR(20) PRIMARY KEY ,"                                                                                                       "room VARCHAR(20) NOT NULL,"                                                                                                       "name VARCHAR(20) NOT NULL)");那么我想让id和name二者作为复合主键应该如何建表呢？