What is MIME type "application/x-mysql-db"?
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
application/x-mysql-db is a MIME type that identifies files storing MySQL table definitions. These files hold the structure of a database table, such as field types, indexes, and other metadata. They do not contain actual table data.
Files using this MIME type follow the MySQL Table Definition Format found in the file FRM.
Key facts and use cases:
- Database Schema Storage: It marks files that contain table structure details used by MySQL.
- System Integration: Software tools and database utilities use it to recognize and process table definitions.
- Backup and Migration: The format can be involved in backing up and transferring database schemata.
This MIME type, with its "x-" prefix, signals a non-standard use case tailored to MySQL environments. For more detailed information about the file format, explore external resources such as this reference.
Associated file extensions
Usage Examples
HTTP Header
When serving content with this MIME type, set the Content-Type header:
Content-Type: application/x-mysql-db
HTML
In HTML, you can specify the MIME type in various elements:
<a href="file.dat" type="application/x-mysql-db">Download file</a>
Server-side (Node.js)
Setting the Content-Type header in Node.js:
const http = require('http');
http.createServer((req, res) => {
res.setHeader('Content-Type', 'application/x-mysql-db');
res.end('Content here');
}).listen(3000);
Associated file extensions
FAQ
What is a MIME type?
A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.
MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.
MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.
How do I find the MIME type for a file?
You can check the file extension or use a file identification tool such as file --mime-type
on the command line. Many programming languages also provide libraries to detect MIME types.
Why are multiple MIME types listed for one extension?
Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.