MySQL Retrospective - Certifications
发表于: 。This post is a brief retrospective on MySQL certification over the years and versions.
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相关的文章:本列表汇集了关于 MySQL 的实用文章,涵盖数据库管理、数据导入、主从复制及性能监控等多个方面,帮助您深入理解和应用 MySQL 技术。
This post is a brief retrospective on MySQL certification over the years and versions.
1. Use Proper Indexing Indexes speed up data retrieval by reducing the amount of data scanned SELECT * FROM employees WHERE last_name = 'Smith'; if you are query a single column of a table...
优化数据库查询的方法包括使用合适的索引、避免SELECT *、优化连接、利用查询缓存和对大表进行分区。这些措施能减少服务器负担,提高查询效率。
In this series, “MySQL with Diagrams,” I’ll use diagrams to explain internals, architectures, and structures as detailed as possible. In basic terms, here’s how replication works: the transactions...
本文介绍了MySQL的复制机制,包括二进制日志和线程的作用。源服务器将事务写入二进制日志,副本通过I/O接收线程获取更新,并通过SQL应用线程执行。配置参数如sync_binlog和replica_parallel_workers对性能和稳定性至关重要。
For the 12th day of our Advent Calendar of Content, we bring you a summary of all the MySQL Blog posts that discuss regular expressions and how they can be used in MySQL.
So, as you’ve noticed, I’ve been playing around with MySQL Router v8.4.3 and read-write splitting, and now I’ve come across some issues that my environment has generated and I’ve opened some bugs...
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What is the Query Cache? The Query Cache is a feature in MySQL designed to boost database performance by caching the results of SELECT queries. When a query that's been executed before is run...
查询缓存是MySQL的功能,通过缓存SELECT查询结果提高性能,快速返回之前的查询结果,减轻数据库负担。关键变量包括query_cache_type和query_cache_size,影响缓存的启用、大小和效率。虽然在MySQL 5.7中被弃用,8.0中移除,但旧版本仍可用。
Performance Schema 提供了更全面、更细粒度的性能数据,同时对系统性能的影响也更小,可以统计 SQL 的执行频率和延迟。
Performance Schema 是 MySQL 的性能监控工具,提供实时的全面性能数据,帮助识别瓶颈。尽管需要额外内存,但其细粒度数据有助于深入分析,结合其他工具可优化查询性能。
For the 11th day of our Advent Calendar of Content, we bring you a summary of all the MySQL Shorts that are focussed on making working with JSON easier.
This blog covers how America First Credit Union adoption of MySQL Enterprise Edition has transformed its membership onboarding process, reducing complexity, improving system performance, and...
Como criar um CRUD (Create, Read, Update, Delete) em PHP com MySQL. Esse exemplo usa a extensão MySQLi para realizar as operações no banco de dados. Passo 1: Criação do Banco de Dados e...
本文介绍了如何使用PHP和MySQL创建基本的CRUD应用,包括创建数据库和用户表、连接数据库、编写用户管理页面、添加、编辑和删除用户。还探讨了面向对象的方法以优化代码结构,并提供了API创建和消费的示例。最后,给出了准备PHP开发者面试的建议和要点。