Mode in which to open the database.

• read: read-only, throws an error if the database file does not exists

• write: read-write, throws an error if the database file does not exists

• create: read-write, create the database if the file does not exist (for an in-memory database this is the same as write)

create is the default if no mode is specified.

Force the database to be in-memory. When this option is set, the database is opened in memory, regardless of the specified filename.

Interpret the file name as a URI. See https://sqlite.org/uri.html for more information.