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We’re excited to announce the general availability of MySQL HeatWave in a new AWS region — Mexico Central (Querétaro) — reinforcing our commitment to expanding globally and meeting growing customer demand.

MySQL HeatWave on AWS Now in Mexico

Planet MySQL
Planet MySQL · 2025-09-25T13:57:00Z

Take your first hands-on steps in MySQL! This post teaches you how to create schemas and tables using relatable library analogies, beginner-friendly SQL examples, and tips to avoid common...

MySQL Basics: Table Manners – Setting up Your First Schema and Table

Planet MySQL
Planet MySQL · 2025-09-25T04:00:00Z

索引优化涉及多个方面,包括查询优化器运作、数据分布、索引结构等。了解索引未生效的原因并合理优化查询,可以显著提升数据库性能。索引虽强大,但只有正确规划和使用才能发挥最大效用。

为什么MySQL索引不生效?来看看这8个原因

程序新视界
程序新视界 · 2025-09-25T02:37:07Z

索引下推(Index Condition Pushdown, ICP)是数据库查询优化的一种技术。它主要用于提升数据库查询性能,尤其是顺序扫描大表或使用索引进行过滤时。索引下推在 MySQL 5.6 引入,是针对索引的查询优化。

什么是MySQL的索引下推(Index Condition Pushdown, ICP)?

程序新视界
程序新视界 · 2025-09-24T02:27:35Z

MySQL HeatWave on AWS extends its monitoring capabilities by integrating with Amazon CloudWatch, allowing you to view many additional metrics and track its history over time.

Monitoring MySQL HeatWave on AWS: From Console to CloudWatch

Planet MySQL
Planet MySQL · 2025-09-23T17:29:00Z

Demystify MySQL data types with this lighthearted guide for beginners! Learn how choosing the right type for each column—numbers, text, or dates—keeps your database organized, efficient, and easy...

MySQL Basics: Getting TYPE-cast – Choosing the Right Data Type for the Job

Planet MySQL
Planet MySQL · 2025-09-23T04:00:00Z

Introducing Backup Validation and Backup Preparation in MySQL HeatWave

Introducing Backup Validation and Backup Preparation in MySQL HeatWave

Planet MySQL
Planet MySQL · 2025-09-22T18:06:00Z

An overview of lockless optimistic concurrency control feature introduced for MySQL JSON Duality Views in version 9.4.

Preventing Read-Write Conflicts: Lockless Concurrency in MySQL JSON Duality Views

Planet MySQL
Planet MySQL · 2025-09-20T19:34:00Z

An overview of lockless optimistic concurrency control feature introduced for MySQL JSON Duality Views in version 9.4.

Preventing Read-Write Conflicts: Lockless Concurrency in MySQL JSON Duality Views

Planet MySQL
Planet MySQL · 2025-09-20T19:34:00Z

An overview of DDL support for JSON Relational Duality Views introduced in version 9.4.

Hands-on with JSON Duality Views in MySQL: From Creation to Day-to-Day Use

Planet MySQL
Planet MySQL · 2025-09-20T19:32:00Z

An overview of DDL support for JSON Relational Duality Views introduced in version 9.4.

Hands-on with JSON Duality Views in MySQL: From Creation to Day-to-Day Use

Planet MySQL
Planet MySQL · 2025-09-20T19:32:00Z

An overview of DML support for JSON Relational Duality Views introduced in version 9.4.

Manipulating Data in MySQL JSON Duality Views: Deep Dive into DML Operations

Planet MySQL
Planet MySQL · 2025-09-19T15:59:00Z

An overview of DML support for JSON Relational Duality Views introduced in version 9.4.

Manipulating Data in MySQL JSON Duality Views: Deep Dive into DML Operations

Planet MySQL
Planet MySQL · 2025-09-19T15:59:00Z

回表查询(Table Lookup或Back to Table)是数据库查询中的一个过程,指在使用非聚集索引(Secondary Index或Non-Clustered Index)定位数据时,由于索引节点中不包含查询所需的全部列,数据库需要根据索引找到数据行的位置(通常是主键或行标识符),然后回到聚集索引或数据表中读取完整的数据行。这种行为通常发生在查询的字段未被索引覆盖,索引不足以直接满足查询需求时。

MySQL中什么是回表查询,如何避免和优化?

程序新视界
程序新视界 · 2025-09-18T13:18:21Z
帮助塑造MySQL中向量搜索的未来

AI和机器学习推动数据库公司关注向量搜索,企业希望构建智能搜索和推荐系统。虽然MySQL尚未支持向量搜索,但PostgreSQL和MongoDB已提供成熟解决方案。Percona正在征询用户反馈,以评估MySQL是否应纳入向量搜索及其应用场景。

帮助塑造MySQL中向量搜索的未来

Percona Database Performance Blog
Percona Database Performance Blog · 2025-09-18T13:00:36Z

This post guides newcomers through accessing and exploring their databases using MySQL Shell. Clear instructions, friendly guidance, and practical tips ensure a confident start for any data...

MySQL Basics: Into the Shell—Cracking Open Your Database Journey

Planet MySQL
Planet MySQL · 2025-09-18T04:00:00Z

曾担任 MySQL 性能工程师的知名社区成员 Peter Zaitsev 也对裁员表示强烈批评,担忧这是 Oracle 在削弱 MySQL 社区版(Community Edition)的影响力,根据 The Register 的报道,Oracle 近日对其 MySQL 团队进行了大规模裁员,约有 70 名员工受到影响,其中不乏核心和资深开发者。消息称 MySQL 团队已被并入 Oracle...

甲骨文在“慢慢地杀掉”MySQL社区版。

dotNET跨平台
dotNET跨平台 · 2025-09-18T00:02:30Z

Announcing the release of MySQL AI, an option to MySQL Enterprise Edition, that provides built-in predictive and generative AI capabilities and a vector store.

Announcing MySQL AI

Planet MySQL
Planet MySQL · 2025-09-17T14:36:00Z
MySQL图解第三部分:写入过程的生命周期

MySQL的InnoDB引擎通过将更新先写入内存日志缓冲区,再刷新到重做日志,确保数据安全和一致性,支持崩溃恢复。脏页在缓冲池中积累并定期刷新。撤销日志记录旧值,支持事务回滚和多版本并发控制。重做日志控制检查点,影响性能。二进制日志用于复制和恢复。设置innodb_flush_log_at_trx_commit可调整日志刷新时机,影响持久性和性能。

MySQL图解第三部分:写入过程的生命周期

Percona Database Performance Blog
Percona Database Performance Blog · 2025-09-17T13:27:49Z

聚集索引并不是一种单独的索引类型,而是表中的记录按照索引的顺序存储。在MySQL的InnoDB存储引擎中,聚集索引与表的物理存储顺序紧密相关。一个表只能有一个聚集索引,其他所有的索引被称为辅助索引(Secondary...

如何在MySQL中创建聚集索引?

程序新视界
程序新视界 · 2025-09-17T00:37:14Z
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