How dedecms modifies the database

The methods for dedecms to modify the database are: 1. Log in to phpMyAdmin or other MySQL management tools, find the database where dedecms is located, select the data table to be modified in the left menu bar, modify the target field, and then save and exit; 2. Log in to the dedecms backend, select "System" -> "Database" in the left menu bar, enter the SQL statement to be executed in the "SQL Command" tab at the top of the page, and click the "Execute" button. Just complete the modification of the data table.

The operating system of this tutorial: Windows 10 system, DedeCMS version 5.7.109, Dell G3 computer.

dedecms can implement data operations by modifying the specified data table in the database.

There are two methods to modify the database:

Method 1: Use phpMyAdmin or other MySQL management tools

• Log in to phpMyAdmin or other MySQL management tools;

• Find the database where dedecms is located;

• Select the one you want to modify in the left menu bar Data table;

• Modify the target field;

• Save and exit.

Method 2: Use SQL commands in dedecms background

• Log in to dedecms background;

• Select "System"->"Database" in the left menu bar;

• Enter the SQL that needs to be executed in the "SQL Command" tab at the top of the page Statement;

• Click the "Execute" button to complete the modification of the data table.

Detailed code example:

```sql
-- 将dedecms数据库中的archives数据表中id=1的文档title字段更新为"新标题"
UPDATE `dede_archives` SET `title`='新标题' WHERE (`id`=1);
-- 将dedecms数据库中的feedback数据表中id=1的反馈信息status字段更新为已处理
UPDATE `dede_feedback` SET `status`=1 WHERE (`id`=1);

Note: The data table name, field name and condition value in the above example need to be replaced with the actual situation. It is recommended to back up the relevant data tables before operation.

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