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MySQL 8.0 用戶管理更改密碼創(chuàng)建用戶登錄遇到很迷的問題

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喵喵時光機 2019-05-10 15:59:34

1、MySQL版本8.0根據(jù)官方文檔來創(chuàng)建用戶，設(shè)置密碼。然后測試登錄以及更改密碼。1.1、創(chuàng)建用戶并登陸測試在MySQL服務(wù)器上創(chuàng)建用戶。mysql>createuser'aplan'@'%'identifiedby'Aplan123@';QueryOK,0rowsaffected(0.00sec)mysql>flushprivileges;QueryOK,0rowsaffected(0.00sec)mysql>grantallonaplan.*to'aplan'@'%';QueryOK,0rowsaffected(0.15sec)mysql>mysql>mysql>flushprivileges;QueryOK,0rowsaffected(0.00sec)然后使用用戶登錄MySQL測試[root@testzhiwei]#/usr/local/mysql/bin/mysql-uaplan-pAplan123@Warning:Usingapasswordonthecommandlineinterfacecanbeinsecure.ERROR1045(28000):Accessdeniedforuser'aplan'@'localhost'(usingpassword:YES)[root@testzhiwei]#[root@testzhiwei]#[root@testzhiwei]#[root@testzhiwei]#/usr/local/mysql/bin/mysql-uaplan-pEnterpassword:ERROR1045(28000):Accessdeniedforuser'aplan'@'localhost'(usingpassword:YES)無法登錄。1.2、更改用戶密碼mysql>ALTERUSER'aplan'@'%'IDENTIFIEDBY'password';ERROR1064(42000):YouhaveanerrorinyourSQLsyntax;checkthemanualthatcorrespondstoyourMySQLserverversionfortherightsyntaxtousenear'IDENTIFIEDBY'password''atline1?????我這哪里的語法錯了？？？

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2 回答

慕沐林林

TA貢獻2016條經(jīng)驗獲得超9個贊

Thecaching_sha2_passwordandsha256_passwordauthenticationpluginsprovidemoresecurepasswordencryptionthanthemysql_native_passwordplugin,andcaching_sha2_passwordprovidesbetterperformancethansha256_password.Duetothesesuperiorsecurityandperformancecharacteristicsofcaching_sha2_password,itisasofMySQL8.0thepreferredauthenticationplugin,andisalsothedefaultauthenticationpluginratherthanmysql_native_password.CREATEUSER'aplan'@'%'IDENTIFIEDWITHmysql_native_passwordBY'Aplan123@';

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慕仙森

TA貢獻1827條經(jīng)驗獲得超8個贊

注意文本格式，有時候在其他地方直接復(fù)制粘貼執(zhí)行會有問題，例如從word復(fù)制執(zhí)行。另外密碼如果有特殊符號，可以用單引號括起來。以下是測試，沒發(fā)現(xiàn)有什么問題：mysql>createuser'aplan'@'%'identifiedby'Aplan123@';QueryOK,0rowsaffected(0.02sec)mysql>selectuser,hostfrommysql.user;userhostaplan%mysql.infoschemalocalhostmysql.sessionlocalhostmysql.syslocalhostrootlocalhost5rowsinset(0.00sec)mysql>flushprivileges;QueryOK,0rowsaffected(0.04sec)mysql>exitBye[root@linux-basemysql]#mysql-uaplan-p'Aplan123@'mysql:[Warning]Usingapasswordonthecommandlineinterfacecanbeinsecure.WelcometotheMySQLmonitor.Commandsendwith;org.YourMySQLconnectionidis10Serverversion:8.0.12MySQLCommunityServer-GPLCopyright(c)2000,2018,Oracleand/oritsaffiliates.Allrightsreserved.OracleisaregisteredtrademarkofOracleCorporationand/oritsaffiliates.Othernamesmaybetrademarksoftheirrespectiveowners.Type'help;'or'h'forhelp.Type'c'toclearthecurrentinputstatement.mysql>selectuser();user()aplan@localhost1rowinset(0.00sec)mysql>alteruseraplan@'%'identifiedby'password';QueryOK,0rowsaffected(0.04sec)mysql>exitBye[root@linux-basemysql]#mysql-uaplan-p'password'mysql:[Warning]Usingapasswordonthecommandlineinterfacecanbeinsecure.WelcometotheMySQLmonitor.Commandsendwith;org.YourMySQLconnectionidis11Serverversion:8.0.12MySQLCommunityServer-GPLCopyright(c)2000,2018,Oracleand/oritsaffiliates.Allrightsreserved.OracleisaregisteredtrademarkofOracleCorporationand/oritsaffiliates.Othernamesmaybetrademarksoftheirrespectiveowners.Type'help;'or'h'forhelp.Type'c'toclearthecurrentinputstatement.mysql>selectuser();user()aplan@localhost1rowinset(0.00sec)