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今天回家，遇到这个莫名奇妙的错误，把谷歌和百度翻了好几页也没有解决，大多数都是复制粘贴的一个答案，说什么my.ini的错误，折腾了半天 重装、重新配置、重起 都没有起作用，顺便带一句，真是恨透了那些喜欢复制粘贴混所谓“金币”的人，一页里面都是一样的一段话。 试了谷歌到的几种方法，都没有解决，然后突然想起在启动apache的时候，iis的端口占用情况（因为我的apache也使用了80端口），所以 打开命令行 netstat -aon|findstr "3306" 结果显示 
默默的在内心深处骂了一句“靠”， 果然是端口占用，然后，顺藤摸瓜 tasklist|findstr "416" 结果显示 
不得不联想到，优酷的攻城狮们的mysql数据库绝对不是使用的默认3306端口，然后杀掉explorer.exe进程，然后重起之，把那个可恶的小加速器配置为不隐藏在任务栏并且开机不启动，以防止以后遇到这类事情的时候找不到原因，然后关掉它 然后再运行tasklist|findstr "416" 显示结果为 
启动mysql服务，成功解决。。。。 谨以此记，希望能帮助到使用优酷加速器又使用mysql默认3306端口的同类们，共勉之 作者 James White bitsCN.com
MySQL String Types: Storage, Performance, and Best PracticesMay 10, 2025 am 12:02 AMMySQLstringtypesimpactstorageandperformanceasfollows:1)CHARisfixed-length,alwaysusingthesamestoragespace,whichcanbefasterbutlessspace-efficient.2)VARCHARisvariable-length,morespace-efficientbutpotentiallyslower.3)TEXTisforlargetext,storedoutsiderows,
Understanding MySQL String Types: VARCHAR, TEXT, CHAR, and MoreMay 10, 2025 am 12:02 AMMySQLstringtypesincludeVARCHAR,TEXT,CHAR,ENUM,andSET.1)VARCHARisversatileforvariable-lengthstringsuptoaspecifiedlimit.2)TEXTisidealforlargetextstoragewithoutadefinedlength.3)CHARisfixed-length,suitableforconsistentdatalikecodes.4)ENUMenforcesdatainte
What are the String Data Types in MySQL?May 10, 2025 am 12:01 AMMySQLoffersvariousstringdatatypes:1)CHARforfixed-lengthstrings,2)VARCHARforvariable-lengthtext,3)BINARYandVARBINARYforbinarydata,4)BLOBandTEXTforlargedata,and5)ENUMandSETforcontrolledinput.Eachtypehasspecificusesandperformancecharacteristics,sochoose
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.
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