随着云计算和大数据时代的到来，数据库的选择变得越来越重要。本文将对三大主流数据库进行全面测评。 一、MySQL 8.0 性能表现 MySQL作为最流行的关系型数据库，在8.0版本中引入了诸多改进。经过实测，在高并发场景下，MySQL 8.0的QPS可达到15000+，相比5.7版本 ...

A seasoned software engineer with extensive experience in building complex distributed data-intensive backend services. The most general way to satisfy a COUNT DISTINCT or SELECT DISTINCT clause is to ...

PostgreSQL leads in developer popularity in 2026 and offers advanced features for complex workloads. MySQL remains widely adopted, stable, and strong in traditional web and enterprise environments.

近年来，随着信息技术的迅猛发展和数据库自主可控需求的提升，PostgreSQL凭借其开源、稳定和功能强大的特性，已成为国产数据库创新的首选技术底座。多家国内头部科技企业如腾讯、阿里和华为纷纷基于PostgreSQL进行深度定制，打造出满足自身需求的分布式 ...

Cybersecurity researchers have disclosed a high-severity security flaw in the PostgreSQL open-source database system that could allow unprivileged users to alter environment variables, and potentially ...

MySQL and PostgreSQL are two of the most used open source SQL databases, and both fulfill the role of a general-purpose database well. How do you choose which one to use for a project? Let's look at ...

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