mysql was originally open source, that is, an open source relational database management system, but the MySQL license is now divided into free community edition and paid standard edition, enterprise edition, etc.
The operating environment of this article: Windows 7 system, Mysql version 5.7.14, Dell G3 computer.
Is mysql open source?
mysql was originally open source.
MySQL (officially pronounced /maɪˌɛskjuːˈɛl/"My S-Q-L", but also often pronounced as /maɪˈsiːkwəl/"My Sequel") was originally an open source relational database management system. The original developer was Swedish MySQL AB, which was acquired by Sun Microsystems in 2008. In 2009, Oracle acquired Sun Microsystems, and MySQL became a product of Oracle.
MySQL has become the most popular open source database in the past due to its high performance, low cost, and good reliability, and is therefore widely used in small and medium-sized websites on the Internet. As MySQL continues to mature, it is gradually used in more large-scale websites and applications, such as Wikipedia, Google, and Facebook. The "M" in the very popular open source software combination LAMP refers to MySQL.
However, after being acquired by Oracle, Oracle significantly increased the price of the MySQL commercial version, and Oracle no longer supports the development of OpenSolaris, another free software project. This has led the free software community to question whether Oracle can still There are concerns that MySQL Community Edition (the only free version among MySQL) will continue to be supported. Michael Widenius, the founder of MySQL, established a branch project MariaDB based on MySQL. Some open source software that originally used MySQL gradually turned to MariaDB or other databases. For example, Wikipedia officially announced in 2013 that it would migrate from MySQL to MariaDB database.
MySQL’s license is now divided into free community edition and paid standard edition, enterprise edition, etc. Generally speaking, if MySQL is released in a non-open source project, or Oracle is required to provide technical support for MySQL, or some enterprise version tools or plug-ins of MySQL are used, or the MySQL source code is modified and used as closed source software, etc. , need to purchase the commercial version. If you just install and use MySQL, or even modify and use MySQL, regardless of whether it is charged or not; or if the software does not include MySQL and the user of the software installs MySQL by himself; or if MySQL is included in open source software products using the GPL agreement, you may use the community version in these cases MySQL.
[Related recommendations: mysql video tutorial]
The above is the detailed content of Is mysql open source?. For more information, please follow other related articles on the PHP Chinese website!
How to Grant Permissions to New MySQL UsersMay 09, 2025 am 12:16 AMTograntpermissionstonewMySQLusers,followthesesteps:1)AccessMySQLasauserwithsufficientprivileges,2)CreateanewuserwiththeCREATEUSERcommand,3)UsetheGRANTcommandtospecifypermissionslikeSELECT,INSERT,UPDATE,orALLPRIVILEGESonspecificdatabasesortables,and4)
How to Add Users in MySQL: A Step-by-Step GuideMay 09, 2025 am 12:14 AMToaddusersinMySQLeffectivelyandsecurely,followthesesteps:1)UsetheCREATEUSERstatementtoaddanewuser,specifyingthehostandastrongpassword.2)GrantnecessaryprivilegesusingtheGRANTstatement,adheringtotheprincipleofleastprivilege.3)Implementsecuritymeasuresl
MySQL: Adding a new user with complex permissionsMay 09, 2025 am 12:09 AMToaddanewuserwithcomplexpermissionsinMySQL,followthesesteps:1)CreatetheuserwithCREATEUSER'newuser'@'localhost'IDENTIFIEDBY'password';.2)Grantreadaccesstoalltablesin'mydatabase'withGRANTSELECTONmydatabase.TO'newuser'@'localhost';.3)Grantwriteaccessto'
MySQL: String Data Types and CollationsMay 09, 2025 am 12:08 AMThe string data types in MySQL include CHAR, VARCHAR, BINARY, VARBINARY, BLOB, and TEXT. The collations determine the comparison and sorting of strings. 1.CHAR is suitable for fixed-length strings, VARCHAR is suitable for variable-length strings. 2.BINARY and VARBINARY are used for binary data, and BLOB and TEXT are used for large object data. 3. Sorting rules such as utf8mb4_unicode_ci ignores upper and lower case and is suitable for user names; utf8mb4_bin is case sensitive and is suitable for fields that require precise comparison.
MySQL: What length should I use for VARCHARs?May 09, 2025 am 12:06 AMThe best MySQLVARCHAR column length selection should be based on data analysis, consider future growth, evaluate performance impacts, and character set requirements. 1) Analyze the data to determine typical lengths; 2) Reserve future expansion space; 3) Pay attention to the impact of large lengths on performance; 4) Consider the impact of character sets on storage. Through these steps, the efficiency and scalability of the database can be optimized.
MySQL BLOB : are there any limits?May 08, 2025 am 12:22 AMMySQLBLOBshavelimits:TINYBLOB(255bytes),BLOB(65,535bytes),MEDIUMBLOB(16,777,215bytes),andLONGBLOB(4,294,967,295bytes).TouseBLOBseffectively:1)ConsiderperformanceimpactsandstorelargeBLOBsexternally;2)Managebackupsandreplicationcarefully;3)Usepathsinst
MySQL : What are the best tools to automate users creation?May 08, 2025 am 12:22 AMThe best tools and technologies for automating the creation of users in MySQL include: 1. MySQLWorkbench, suitable for small to medium-sized environments, easy to use but high resource consumption; 2. Ansible, suitable for multi-server environments, simple but steep learning curve; 3. Custom Python scripts, flexible but need to ensure script security; 4. Puppet and Chef, suitable for large-scale environments, complex but scalable. Scale, learning curve and integration needs should be considered when choosing.
MySQL: Can I search inside a blob?May 08, 2025 am 12:20 AMYes,youcansearchinsideaBLOBinMySQLusingspecifictechniques.1)ConverttheBLOBtoaUTF-8stringwithCONVERTfunctionandsearchusingLIKE.2)ForcompressedBLOBs,useUNCOMPRESSbeforeconversion.3)Considerperformanceimpactsanddataencoding.4)Forcomplexdata,externalproc
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
SublimeText3 Mac version
God-level code editing software (SublimeText3)
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
Notepad++7.3.1
Easy-to-use and free code editor
WebStorm Mac version
Useful JavaScript development tools
