hibernate中的事务管理是什么？
hibernate中的事务管理是什么？
在我的休眠应用程序中存在一对多映射。
例如：Student 表与Subjects 表映射。
当我添加一个 Student 对象时，Subjects 表也添加了一些条目。
当 Subjects 表插入中发生任何错误时，我想自动删除 Student 表条目。
可以通过事务管理吗？不然怎么可能呢？
What is transaction management in hibernate?
in my hibernate application one-to-many mapping is there.
Eg : Student table is mapped with Subjects table.
When I am adding a Student object at that time Subjects table also adding some entry.
While any error occurs in Subjects table insertion I want automatically delete the Student table entry.
Is it possible through transaction management? Else how is it possible?
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您所描述的正是交易的目的。这个想法是将数据库操作分组到单个事务中，它们要么全部成功，要么全部失败。这样您的数据库就不会处于中间和无效状态。
事务管理是一个广阔且通常相当复杂的领域，配置它的方式取决于您的特定应用程序设置。
由于您只提到了 Hibernate，因此我建议您首先阅读 文档的这一章。如果您使用 Spring 来划分事务边界，我建议您阅读 this他们的文档的 部分。
值得注意的是，您无法在事务之外将 SQL 发送到数据库。 此处对此进行了讨论。
What you've described is exactly what transactions are for. The idea is that you group database operations into a single transaction and either they're all successful or they all fail. This way your database cannot end up in an intermediate and invalid state.
Transaction management is a vast and often quite complex area and the way in which you configure it depends on your specific application setup.
Since you're only mentioned Hibernate I would recommend that you start by reading this chapter of the documentation. If you are using Spring to demarcate transaction boundaries I would recommend you read this section of their documentation.
It is worth noting that you cannot send SQL to your database outside of a transaction. There is discussion around this here.