What is a .DB-SHM file?
The .DB-SHM file extension stands for a SQLite Database Shared Memory File. This type of file is a temporary file that is automatically created by SQLite, which is a small and efficient database program. SQLite is commonly used in both mobile and desktop applications because it's lightweight and easy to integrate.
The purpose of a .DB-SHM file is to help SQLite manage shared memory storage. Shared memory is a way for different processes on the same computer to access the same memory space, which is useful for databases that might be accessed by multiple parts of an application at the same time. The .DB-SHM file works alongside the main database file to ensure that this shared memory usage is handled correctly.
It's important to note that .DB-SHM files are not meant to be opened by users. They are managed internally by SQLite and are created and deleted as needed by the database system. Therefore, you don't need to worry about opening or editing these files yourself.
In terms of programs that can open a .DB-SHM file, the answer is essentially SQLite itself. Since these files are part of the internal workings of SQLite databases, only SQLite has the necessary functionality to work with them directly.
Additionally, .DB-SHM files are often accompanied by .DB-WAL files. Both of these types of files are temporary and are used by the database for different purposes related to managing data and memory. Just like with .DB-SHM files, you don't need to manually copy or move .DB-WAL files when you're dealing with the original database file (.db). They are part of the temporary infrastructure that supports the database and are handled automatically by SQLite.
If you're exploring the data directory of an application and come across files with the .DB-SHM extension, it's a sign that the application is using SQLite for its database needs. Remember, these files are a normal part of SQLite's operation and don't require any action on your part.
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