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 ...

One dilemma of deployment is what to do about a SQL database. For easy deployment of a Java application, you've probably used tools like Web Start to let the application download and run in almost a ...

The SQL Server 2005 database is available in various editions: Enterprise, Standard, Workgroup, Express, Developer, and Mobile. The Enterprise Edition is for enterprise-level applications that require ...

Java Database Connectivity (JDBC) is an application program interface (API) packaged with the Java SE edition that makes it possible to standardize and simplify the process of connecting Java ...

A Java Web application often uses a SQL Server database. SQL Server now comes bundled with a reporting tool, Reporting Services. RS has generated a lot of attention among developers since it first ...

Earlier this month, Microsoft released version 18.5 of the SQL Server Management Studio. The general release of SQL Server 2019 last year brought some interesting improvements for the database ...

Microsoft has open sourced the Java language extension it added to SQL Server 2019 last year. Language extensions are used in SQL Server to allow users to execute code externally for queries. The ...