Which database is suitable for storing images?

To store images in iOS applications, databases that support binary data storage (BLOB) are usually used. However, it is often recommended not to store the images themselves in the database, but to save them in the file system, and only store the paths or links to these files in the database.

If you need to store images in the database, the following are suitable:

• Core Data — Apple's framework for managing object data models, supports storing binary data (NSData), which allows saving images.
• SQLite — an embedded relational database, supports the BLOB type for storing binary data.

Example of storing an image in Core Data:

let imageData = image.pngData()
entity.image = imageData
try context.save()

But for optimal performance and resource management, it is better to store images in the file system, and only store metadata and file paths in the database.