phpMyAdmin Programming Tutorials: Learn phpMyAdmin Online-php.cn

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Technical Articles

Database

phpMyAdmin

How does phpMyAdmin display and allow editing of DEFAULT values and AUTO_INCREMENT properties for columns?

phpMyAdmindisplaysandallowseditingofcolumndefaultsandauto-incrementsettingsthroughthetablestructureview.1.Defaultvaluesareshowninthe"Default"column,whereyoucaneditthemviadropdownorinputfield,supportingNULL,CURRENT_TIMESTAMP,USER(),orcustomv

Jul 23, 2025 am 04:19 AM

Database management

How does phpMyAdmin integrate with browser password managers, and what are the security concerns?

phpMyAdmin is often incompatible with the browser password manager due to the special login mechanism. It is mainly because its form sends credentials directly to the MySQL server rather than through the PHP backend processing, and the form action points to a non-standard URL, may use HTTP basic authentication, and lacks a clear login and successful jump mode. To improve compatibility, you can use bookmark scripts to automatically fill, switch to cookie authentication, use dedicated password management tools, and avoid using HTTP basic authentication. However, security risks need to be paid attention to, including credential leakage caused by forgery pages, improper session management, risk of brute force cracking on shared hosting, permission spread caused by configuration errors, and password reuse problems. Long-term recommendations are recommended to use strong passwords and restrict access to phpMyAdmin

Jul 23, 2025 am 04:12 AM

Password manager

How can I use phpMyAdmin to duplicate an entire database or a specific table?

To copy the database or table in phpMyAdmin, you can follow the following steps: 1. When copying the entire database, select the source database, click the "Operations" tab, fill in the new database name and select the copy content (structure and data, structure only or data only), and complete the copy after submission; 2. When copying a specific table, open the source table, enter the "Operations" tab, specify the new table name and target database in the "Copytableto" section (if necessary), select whether to copy the data, and click Go to perform the operation. Pay attention to ensuring that the target does not exist and has sufficient permissions, and pay attention to the need to manually handle views, stored procedures, etc.

Jul 23, 2025 am 03:58 AM

Database replication

How can I set a default character set for new databases or tables created via phpMyAdmin?

To set the default character set for a new database or table in phpMyAdmin, you should first set the global default character set and collation rules by modifying the MySQL server configuration file. For example, add character-set-server=utf8mb4 and collation-server=utf8mb4_unicode_ci in /etc/my.cnf or C:\ProgramData\MySQL\MySQLServerX.Y\my.ini, and then restart the MySQL service; secondly, when creating a new database in phpMyAdmin, you should select the corresponding collation rules in the "Collation" drop-down menu.

Jul 23, 2025 am 03:34 AM

character set

Can phpMyAdmin be used to create and manage views, stored procedures, and triggers?

Yes,phpMyAdmincanbeusedtocreateandmanageviews,storedprocedures,andtriggers.1.Tocreateaview,userscaneitherusethe"SQL"tabtowriteaCREATEVIEWstatementornavigatetothe“View”tab,click“Createview,”anddefineaSELECTquerythroughavisualinterface.2.Fors

Jul 22, 2025 am 03:45 AM

Database management

Where can I execute custom SQL queries directly within the phpMyAdmin interface?

TorunSQLqueriesinphpMyAdmin,opentheSQLtabandusethequerywindow.First,logintophpMyAdminandselectadatabaseortable.ThenclicktheSQLtabtoaccessthetextboxforenteringquerieslikeSELECT,INSERT,UPDATE,orDELETE.TypeorpasteyourSQLcommandsuchas“SELECT*FROMusersWHE

Jul 22, 2025 am 01:02 AM

sql query

What is the 'Advisor' system in phpMyAdmin, and what kind of recommendations does it provide?

phpMyAdmin's Advisor is a built-in tool to help users optimize the structure and performance of MySQL databases. It provides actionable suggestions by analyzing database schemas and based on best practices, such as checking for missing indexes, unrecommended data types, tables with missing primary keys, InnoDB tablespace fragmentation, and large tables with no compression enabled, etc. Recommendations should be carefully reviewed, impacts should be evaluated, and changes should be implemented during use or during testing environments.

Jul 22, 2025 am 12:40 AM

How can I browse and edit data within a specific table using phpMyAdmin?

The steps to browse and edit data tables using phpMyAdmin are as follows: 1. After logging in, select the database and target table; 2. Click "Browse" to view the data and use sorting, filtering and other functions; 3. Click the pencil icon at the end of the row to directly edit a single record or select multiple records in batches to modify it; 4. Pay attention to field types and foreign key constraints when editing, and save changes carefully. These steps allow you to efficiently manage data without getting lost in the interface.

Jul 22, 2025 am 12:25 AM

Data editing

How can phpMyAdmin be used to monitor server traffic and query statistics?

To use phpMyAdmin to view server traffic and query statistics, please operate in sequence: 1. Click the "Status" tab to view real-time data such as overview, traffic, query statistics, and connections; 2. Check key configurations such as max_connections and thread_cache_size in the "Variables" tab to assist in analysis performance; 3. If slow query log is enabled, find the "Slow Query" link in "Status" for access; 4. Use the "Operation" tab to monitor the number of rows and storage of a specific table. Although these features are not professional monitoring tools, they are suitable for quickly diagnosing database load and performance issues.

Jul 21, 2025 am 02:44 AM

Server monitoring

How does phpMyAdmin display GIS (Geographic Information System) data types?

phpMyAdmin supports spatial data display through built-in GIS visualization, and uses OpenLayers and GoogleMaps API to implement map rendering. 1. It decodes the binary space types such as GEOMETRY and POINT of MySQL into WKT format for easy viewing and editing; 2. Provides the "GIS" tab page when browsing tables, uses OpenLayers to display maps and supports multi-layer overlay; 3. Provides a graphical editor to insert or modify spatial data without manually entering WKT; 4. Supports exporting spatial data in GeoJSON, KML and other formats, suitable for external tools such as QGIS and Leaflet.js. Although not a complete GIS system, it provides

Jul 21, 2025 am 02:37 AM

GIS数据

How does phpMyAdmin's 'SQL history' feature help in recalling previous queries?

TheSQLhistoryfeatureinphpMyAdminhelpsusersrecallandreusepreviousqueriesbystoringthemduringsessions.ItrecordsexecutedSQLstatementssuchasSELECT,INSERT,UPDATE,andcomplexjoins,anddisplaystheminthehistorypanelunderthe"SQL"tab.Userscanclickonanyq

Jul 21, 2025 am 02:03 AM

What is the recommended method for importing a SQL dump file into a database via phpMyAdmin?

ToimportaSQLdumpfileusingphpMyAdmin,firstaccessthecorrectdatabasebyloggingintophpMyAdminviayourhostingcontrolpanelandselectingorcreatingtheappropriatedatabasewithassigneduserpermissions.Next,navigatetotheImporttab,clickChooseFiletoselectyour.sqlfile,

Jul 21, 2025 am 01:31 AM

SQL dump

How does phpMyAdmin handle binary data (BLOBs) when displaying or editing table content?

The way phpMyAdmin handles BLOB data is practical but limited. 1. When viewing the BLOB column, placeholders such as [BLOB-25B] are usually displayed to avoid directly rendering large or unreadable content; for text-type BLOBs (such as JSON), you can click to view the specific content. 2. When editing the BLOB field, small text-type BLOBs can be edited through text boxes, while large or binary BLOBs (such as pictures) cannot be edited inline and need to be replaced by downloading or uploading files. 3. Configuration options $cfg['DisplayBinaryAsHex'], $cfg['DisplayBlob'] and $cfg['SaveCellsAtOnce'] can control BL

Jul 20, 2025 am 04:12 AM

blob

How does phpMyAdmin handle different SQL modes set on the MySQL server?

phpMyAdmindoesnotenforceitsownSQLmodebutrespectstheSQLmodesetontheMySQLserver.1.ItsendsSQLcommandsdirectlytotheMySQLserver,wherebehaviordependsontheactiveSQLmode.2.Ifstrictmodeisenabled,phpMyAdminwillshowerrorsforinvalidvaluesinsteadofsilentlyadjusti

Jul 20, 2025 am 04:11 AM

SQL模式