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Technical Articles

Database

phpMyAdmin

What does the 'Enable AJAX' setting in phpMyAdmin's preferences control?

After AJAX is enabled in phpMyAdmin, it can achieve dynamic interface updates through asynchronous loading to reduce overall page refresh. The specific functions include: 1. Loading new rows through AJAX when browsing large tables, without overloading the entire page; 2. The query results can be displayed immediately below the SQL input box; 3. Some dialog boxes (such as renaming and deletion) are opened in the form of floating layers. If AJAX is disabled, these operations will fall back to traditional page loading methods, affecting the user experience. It is generally recommended to keep enabled for improved interaction fluency, and only consider disabling it if you encounter JavaScript errors or use an old browser. The setting path is: phpMyAdmin → Settings (Gear Icon) → Home tab → Enable AJAX, this configuration is independent of the user

Jul 09, 2025 am 12:59 AM

ajax

What is the 'Designer' feature in phpMyAdmin, and how can it visualize database schema relationships?

The "Designer" feature of phpMyAdmin is a visualization tool that helps users understand and manage relationships between tables in MySQL or MariaDB databases. It graphically displays table structure, foreign key connections, supports custom tags and annotations, provides an intuitive database schema view, and allows users to interactively adjust layouts. To use this feature, make sure the database uses the InnoDB engine and has foreign key constraints defined, then you can enter the interface by selecting the database and clicking the "Designer" tab at the top. In order to effectively use Designer, you should ensure that foreign keys are correctly set, use drag and drop functions to optimize layout, save the current arrangement, and add comments to improve readability. This tool is debugging complex queries,

Jul 08, 2025 am 12:32 AM

How does phpMyAdmin's 'Export' option for 'Custom' display differ from 'Quick'?

Quick and Custom are two options for phpMyAdmin to export databases. Quick is suitable for fast backup or migration of data, exported in the default SQL format without additional settings; while Custom provides advanced control functions, supports selection of file formats, compression methods, data structures, etc., suitable for scenarios where specific configurations are required or are ready to be delivered to other systems.

Jul 08, 2025 am 12:07 AM

Can I use phpMyAdmin to directly edit enum or set values for a column?

Yes,youcaneditENUMorSETvaluesinphpMyAdminbynavigatingtothetable'sstructure,selectingthecolumntomodify,adjustingthe"Type"andenteringnewvaluesinthe"Values"field,thensavingchangeswhichtriggeranALTERTABLESQLcommand.However,existingdat

Jul 07, 2025 am 12:24 AM

enum/set

How do I change a MySQL user's password using the phpMyAdmin interface?

TochangeaMySQLuser'spasswordinphpMyAdmin,accesstheUserAccountssection,editthedesireduser,updatethepasswordusinganappropriateencryptionmethod,andsavethechanges.First,logintophpMyAdminwithadministrativeprivilegesandnavigatetotheUseraccountstab.Thenloca

Jul 07, 2025 am 12:18 AM

mysql

How does phpMyAdmin assist in identifying tables that need repair or optimization?

phpMyAdminidentifiestablesneedingrepairoroptimizationbydisplayingtheirstatusandoverhead.Tochecktablestatus,selectadatabasetoviewtablesalongwithhealthindicatorssuchas“Crashed”orhigh“Overhead.”Usethe“Checktable”optiontoverifyintegrity,“Repairtable”forc

Jul 06, 2025 am 12:27 AM

How can I increase PHP's execution time or upload limits if phpMyAdmin operations time out?

When encountering phpMyAdmin timeout or upload restrictions, you usually need to adjust the PHP configuration. 1. Increase max_execution_time, if set to 300 seconds or 0 to release the time limit. 2. Adjust upload_max_filesize and post_max_size, if both set to 64M, and make sure post_max_size is slightly larger. 3. If you cannot edit php.ini, you can add the corresponding settings in .htaccess. After modification, restart the web server and take effect.

Jul 06, 2025 am 12:25 AM

php execution time

Why might phpMyAdmin display a 'token mismatch' error, and how can it be resolved?

The"tokenmismatch"errorinphpMyAdministypicallycausedbysessionexpiration,outdatedlinks,cookieissues,orconfigurationproblems.1.Loggingoutandbackinrefreshessessionsandtokens.2.Clearingbrowsercacheandcookies,especiallyforthephpMyAdmindomain,res

Jul 05, 2025 am 12:38 AM

How can I export a database or specific tables to a SQL file using phpMyAdmin?

Yes,youcanexportadatabaseorspecifictablestoaSQLfileusingphpMyAdmin.Toexportanentiredatabase,accessphpMyAdminviayourhostingpanel,selectthedatabase,click"Export",choose"Quick"and"SQL"format,thendownloadthefile.Forspecifict

Jul 05, 2025 am 12:33 AM

Export SQL

How do I alter a table's structure (e.g., add, modify, or drop columns) in phpMyAdmin?

TomanagetablecolumnsinphpMyAdmin,firstaccessthetable'sstructurebyloggingin,selectingthedatabaseandtable,thenclickingthe"Structure"tab.Toaddacolumn:1)usethe"Addfield(s)"section,specifyquantity,position,andfillindetailslikename,type

Jul 04, 2025 am 12:39 AM

Database structure

What are the different export formats (SQL, CSV, XML, PDF, etc.) available in phpMyAdmin, and their use cases?

WhenexportingdatainphpMyAdmin,thebestformatdependsonyourspecificusecase.Fordatabasebackupsandmigrations,chooseSQLasitincludesstructure,data,indexes,andstoredprocedures,allowingfullrestoration.Ifyouneeddataforanalysisorsharingwithnon-developersviaspre

Jul 04, 2025 am 12:36 AM

Export format

What is the purpose of the 'Browse distinct values' option for a column in phpMyAdmin?

"Browsedistinctvalues"inphpMyAdminletsyouviewalluniqueentriesinacolumn,eliminatingduplicates.Thisfeatureisusefulfordataexploration,validation,andfilteringprep.Touseiteffectively,clickthecolumnname,select“Browsedistinctvalues”fromthecolumnde

Jul 03, 2025 am 12:42 AM

What are the server requirements (PHP version, extensions) for running the latest version of phpMyAdmin?

TorunthelatestphpMyAdmin,youneedPHP7.2ornewerwithspecificextensionsandsettings.RequiredPHPversionsincludePHP7.2orhigher,preferablyPHP8.1/8.2;PHP5.xisunsupported.Requiredextensionsarefilter,hash,json,mbstring,openssl,pcre,session,SPL,zip,andeithermysq

Jul 03, 2025 am 12:31 AM

Server requirements

How does phpMyAdmin handle operations on tables with a very large number of columns?

phpMyAdminsupportstableswithmanycolumns,butperformanceandusabilitymaydecrease.OpeningtableswithhundredsorthousandsofcolumnscanslowpageloadsandincreasememoryuseduetoHTML/JavaScriptrenderingandcomplexmetadataqueries;considerusingrawSQL,limitingvisiblec

Jul 02, 2025 am 12:50 AM

Large tables