Serializable provides the highest transaction isolation. This level emulates serial transaction execution, as if transactions had been executed one after another, serially, rather than concurrently.

In PostgreSQL, you can request any of the four standard transaction isolation levels. But internally, there are only two distinct isolation levels, which correspond to the levels Read Committed and ...

序列化是Java中一种重要的机制，它允许将对象转换为字节流，并保存在磁盘上或通过网络传输。然而，Java默认的Serializable接口实现可能不是最优的，可能导致性能问题。本文将介绍如何优化Java对象的序列化性能，并给出相关的代码示例。 第一段：引言 Java的 ...

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二、使用序列化技术 序列化是一种将对象状态转换为可存储或传输格式的方法。通过使用二进制序列化，开发者可以轻松实现深拷贝，代码示例如下： [Serializable] public class Person { public string Name { get; set; } public Address Address { get; set; } } public class Address { ...

PostgreSQL 提供了一系列强大的工具来备份和恢复数据库。这些工具包括 pg_dump, pg_restore, pg_dumpall, 和 pg_basebackup。下面是这些工具的简要概述和一些注意事项： pg_dump 是一个用于备份单个 PostgreSQL 数据库的工具。它可以生成 SQL 文件或自包含的归档文件，其中包含了 ...