Database: In which cabinet are articles, accounts, and settings stored
Currently learning SIN1 · Lecture 10 of 282. Get your website running
The database is not an image folder. Recognize database names, dedicated users, and connection information, and understand why they cannot be deleted arbitrarily.
First, understand the database as a reference cabinet that can be searched
The website stores the data according to the rules and retrieves it when needed. WordPress articles, accounts, categories, partial settings, and many plugin records are usually stored in the database. MySQL and MariaDB are software for managing this kind of data, while a database is a set of data used by a specific website. A table (a structure that stores similar data by row) is like a table, recording a row within a table. You don't need to know SQL (the command language for querying or modifying data) now; just know that deleting a database might delete both articles and accounts.
Why should files and databases be understood separately?
Themes, plugins, and uploaded images are usually in the website's file directory; Article text and settings are usually stored in databases. Just like a bookshelf holding books, catalogs and catalogs recording book titles, both sides together form a website. If only the table of contents is left without image files, or only images without article materials, it may not be possible to fully restore the files. After exporting the database (saving the database data as a recoverable file), you will get the file, but that doesn't mean the original database will always be in the website folder.
What connection information is needed when creating a blog?
WordPress needs to know the database name, database user, user password, and database host address. The host address (where to find the database service) may be localhost (the current machine) or another address, and fill in according to the actual deployment. Creating a dedicated database and corresponding users for a blog ensures the program only enters the cabinets it needs. Do not directly use the server root password as the database password, nor confuse the database administrator root account with the Linux root account. They belong to different systems.
How to hand over these materials to AI
Please prepare a dedicated database and corresponding users for this blog, and place connection information in the website's private settings. Specify the database name and purpose; do not display passwords on public pages or in reply. Do not read, delete, or overwrite data from other websites. After completion, verify that WordPress can connect and save a draft.
WordPress often writes connection parameters in the wp-config.php (website configuration file). Allowing AI to write in a private manner; Product packages and public warehouses cannot contain this true production configuration.
What does "database connection failed" mean?
It means the website program has not successfully connected to the data service, but it does not mean the article is lost. Common inspection directions include whether the service is running, whether the address is correct, whether user passwords or permissions match, and whether there is insufficient space. Tell the AI the error and its occurrence time, check first, then make corrections. Do not use "rebuild database after deletion" as the default repair method, as it may erase any recoverable content.
What to pay attention to when viewing inside the pagoda
The names in the database list should correspond to the names used in this WordPress configuration. When encountering unfamiliar names, first ask AI to explain its purpose; Deleting, clearing, and importing data can all alter the data. Importing (putting backup data back into the database) may also overwrite existing articles, buyer information, and new orders. Before recovery, verify the backup time, target database, and the extent of the recovery loss; do not overwrite the current site just because of a single backup file.
A small exercise can confirm understanding
Have the AI save a test article titled "My First Draft" and check the backend to see if it exists; Then let the AI explain where the article materials and images are stored. Just recognize that both the "data cabinet" and the "folder" are important; do not manually modify the database tables.
Official information: see here for further verification
Introduction to the official MySQL database;Official WordPress installation instructions。 The life analogies, exercises, and AI examples in this article are original course explanations. The software menu and version may change, so let the AI compare it with the interface you actually see.