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前言：在chinaunix上总是有很多同学咨询想学习数据库，或者是为入行DBA做些准备。几年来作为一个MySQL DBA的成长过程有一些积累和感悟，特此拿出来和大家分享。
SQL 入门
在准备成为MySQL DBA之前，能熟练的编写SQL是一个必要条件。exists 和 join之间的等价转换；基本的行列转换；SQL 循环等的熟练掌握对之后的运维和调优工作都有很大的帮助。
推荐书籍：
1. SQL Cookbook [原版下载] [中文版下载]
一本循序渐进的SQL指导手册。每一种业务需求，书中都用MySQL，SQL Server，Oracle三种语法进行解析。
可以顺序的作为学习书籍，也可以之后作为工具书籍查阅。
2. The Art of SQL [原版下载] [中文版购买]
将SQL调优模拟成一场战役，进行战术分析。更多的是传授SQL架构设计方面的知识，实际的调优实例不多，翻译很烂，建议看原版
3. OReilly.MySQL.Stored.Procedure.Programming.Mar.2006.chm
学习MySQL 存储过程语法和编写的最好教材。虽然版本比较老，但是大部分的语法都没有变更，比较推荐。
4. SQL应用重构 [原版下载]
MySQL 入门&精通
如果你已经熟练掌握了基本的SQL编写技巧，就可以进入对于MySQL产品本身的入门学习了
推荐书籍：
1. High Performance MySQL [下载地址]
非常详细的介绍了MySQL运维的各个部分，可以通读了解，也可以作为工具书进行查阅。
2. 深入浅出MySQL数据库开发、优化与管理维护 [下载地址]
教粗浅的介绍了MySQL的相关特性，比较适合MySQL运维的入门
3. MySQL技术内幕 innodb 存储引擎 [下载地址]
很详细的从代码层面分析了Innodb的内部结构，适合深入学习innodb
运维&数据思想
推荐书籍：
1. The Art of Capacity Planning [下载地址]
作为运维免不了要做容量规划和容量预测。这本书是一个很好的开始。
2. Beautiful Data: The Stories Behind Elegant Data Solutions [下载地址]
数据库运维对于数据的敏感是一个重要特质。
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Adding Users to MySQL: The Complete TutorialMay 12, 2025 am 12:14 AMMastering the method of adding MySQL users is crucial for database administrators and developers because it ensures the security and access control of the database. 1) Create a new user using the CREATEUSER command, 2) Assign permissions through the GRANT command, 3) Use FLUSHPRIVILEGES to ensure permissions take effect, 4) Regularly audit and clean user accounts to maintain performance and security.
Mastering MySQL String Data Types: VARCHAR vs. TEXT vs. CHARMay 12, 2025 am 12:12 AMChooseCHARforfixed-lengthdata,VARCHARforvariable-lengthdata,andTEXTforlargetextfields.1)CHARisefficientforconsistent-lengthdatalikecodes.2)VARCHARsuitsvariable-lengthdatalikenames,balancingflexibilityandperformance.3)TEXTisidealforlargetextslikeartic
MySQL: String Data Types and Indexing: Best PracticesMay 12, 2025 am 12:11 AMBest practices for handling string data types and indexes in MySQL include: 1) Selecting the appropriate string type, such as CHAR for fixed length, VARCHAR for variable length, and TEXT for large text; 2) Be cautious in indexing, avoid over-indexing, and create indexes for common queries; 3) Use prefix indexes and full-text indexes to optimize long string searches; 4) Regularly monitor and optimize indexes to keep indexes small and efficient. Through these methods, we can balance read and write performance and improve database efficiency.
MySQL: How to Add a User RemotelyMay 12, 2025 am 12:10 AMToaddauserremotelytoMySQL,followthesesteps:1)ConnecttoMySQLasroot,2)Createanewuserwithremoteaccess,3)Grantnecessaryprivileges,and4)Flushprivileges.BecautiousofsecurityrisksbylimitingprivilegesandaccesstospecificIPs,ensuringstrongpasswords,andmonitori
The Ultimate Guide to MySQL String Data Types: Efficient Data StorageMay 12, 2025 am 12:05 AMTostorestringsefficientlyinMySQL,choosetherightdatatypebasedonyourneeds:1)UseCHARforfixed-lengthstringslikecountrycodes.2)UseVARCHARforvariable-lengthstringslikenames.3)UseTEXTforlong-formtextcontent.4)UseBLOBforbinarydatalikeimages.Considerstorageov
MySQL BLOB vs. TEXT: Choosing the Right Data Type for Large ObjectsMay 11, 2025 am 12:13 AMWhen selecting MySQL's BLOB and TEXT data types, BLOB is suitable for storing binary data, and TEXT is suitable for storing text data. 1) BLOB is suitable for binary data such as pictures and audio, 2) TEXT is suitable for text data such as articles and comments. When choosing, data properties and performance optimization must be considered.
MySQL: Should I use root user for my product?May 11, 2025 am 12:11 AMNo,youshouldnotusetherootuserinMySQLforyourproduct.Instead,createspecificuserswithlimitedprivilegestoenhancesecurityandperformance:1)Createanewuserwithastrongpassword,2)Grantonlynecessarypermissionstothisuser,3)Regularlyreviewandupdateuserpermissions
MySQL String Data Types Explained: Choosing the Right Type for Your DataMay 11, 2025 am 12:10 AMMySQLstringdatatypesshouldbechosenbasedondatacharacteristicsandusecases:1)UseCHARforfixed-lengthstringslikecountrycodes.2)UseVARCHARforvariable-lengthstringslikenames.3)UseBINARYorVARBINARYforbinarydatalikecryptographickeys.4)UseBLOBorTEXTforlargeuns
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