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 ...
Good old-fashioned SQL still rules the database roost, though popular offerings in the NoSQL camp are closing the gap, while MySQL is the most popular of the whole bunch. The new 2019 Database Trends ...
In database management, it’s easy to assume that newer technologies are always better. While many database solutions have gained popularity in recent years, MySQL—one of the oldest and most widely ...
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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 ...
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