知乎 on MSN

两个人同时操纵数据库，怎么处理并发问题?

这不是一条 SQL 就搞定的事情吗？ 我曾经负责过的并发量蛮高的商品库存系统，核心扣减逻辑真的就是靠一条 SQL 搞定的。没有引入分布式锁（如 Redis Lock）或者消息队列。 核心思路其实就是数据库层面的乐观锁。利用 MySQL 的行锁特性 + UPDATE 语句的原子性，再配合 Java 中判断影响行数（Affected ...
Business 2 Community

SQL vs. MySQL: Which Relational Database is Right for You?

Structured Query Language (SQL) is the language used for relational databases. Many database platforms use SQL, but they each have some variations in syntax. Microsoft SQL and MySQL are two of the ...
中关村在线

MySQL执行SQL文件方法

IT人员日常常与MySQL交互，备份与恢复是最常见的操作。直接运行SQL文件是一种高效的方法。本文介绍如何通过导出SQL文件，并在新数据库中执行该文件，实现数据迁移，重点讲解在命令行环境下执行SQL文件的具体步骤与操作流程。 1、 本文以本地测试数据库ymt为 ...
Analytics Insight

PostgreSQL vs MySQL: Which Database is Better in 2026?

Overview: PostgreSQL leads in developer popularity in 2026 and offers advanced features for complex workloads.MySQL remains ...
InfoWorld

The best new features in MariaDB

The open source MySQL spin-off has steadily added features all its own. Here are five good reasons to switch to MariaDB.