Add data to a database.
Find data in a database.
Find one data entry in a database.
Remove data from a database.
Remove one data entry from a database.
Asynchronously removes one entry in a database or adds a new one if it doesn't exist. Usage e.g. for toggling a flag.
Update data in a database.
Update one data entry in a database.
Asynchronously updates one entry in a database or adds a new one if it doesn't exist.
Add data to a database.