我需要在通过JPA EntityManager访问的数据库中创建一个新表。JPA NativeQueries是否支持“Select”或“Update”以外的查询？或者，有没有其他最先进的方法可以在JPAContext中执行复杂的SQL查询？
jpa“本机查询”只能用于DML语句（数据操作语言）。要发出任何DDL，例如创建表，您需要从EntityManager获取底层连接。
如何从EM中提取连接将取决于您使用的JPA实现，但肯定包括调用EntityManager.getDelegate（）。
或者（我认为这是一种更好的方法），如果您正在使用spring向试图创建表的对象注入DataSource或JDBCTemplate，并使用该类来创建表。
JPA（至少是Hibernate）可以让您直接使用createNativeQuery（）和executeUpdate（）执行DDL语句，如下所示：
EntityManager em = ...;
em.createNativeQuery("CREATE TABLE FOO (FOO_ID NUMBER)").executeUpdate();
em.createNativeQuery("DROP TABLE FOO").executeUpdate();
这并不理想，但你可以做到。
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