Is it worth using mutexes when working with a database?

The use of mutexes when working with a database depends on the context and architecture of the application. Usually, mutexes are used to protect shared data in memory from concurrent access by multiple goroutines.

When working with a database:

• If you have a shared object or cache in memory that is updated and read from multiple goroutines, mutexes are needed to synchronize access to this data.
• The database driver itself and the connection pool usually already ensure safety and synchronization, so an additional mutex around database operations is often not required.
• If you want to guarantee the sequence of multiple database operations (e.g., transactions), it is better to use the database's own transaction mechanisms rather than mutexes.

In summary, mutexes are not for the database itself, but for protecting shared data structures in the application related to database operations.