The difference between Getreadabledatabase and getwritabledatabase

(1) The Getwritabledatabase () method opens the database in read-write mode.
Once the database disk space is full, the database can only read and not write, at this time with Getwritabledatabase () Open the database will be an error.

(2) The Getreadabledatabase () method first calls Getwritabledatabase () to open the database in read-write mode first.
If you use a database with a full disk space, it will fail to open and will continue to attempt to open the database as read-only when it fails to open.

Generally avoid the error is to use the Getreadabledatabase () method

The difference between Getreadabledatabase and getwritabledatabase