Backup the database before executing this statement.
The character set of the SQL script file must match the character set of the database you want to upgrade.
Ensure that your device is not reset while this statement is executing. If you reset the device during a schema upgrade, the
UltraLite database becomes unusable.
Any rows that do not fit into the schema will be dropped (for instance if a uniqueness constraint is added and multiple rows
contain the same values, all but one row will be dropped). In this case, the SQLE_ROW_DROPPED_DURING_SCHEMA_UPGRADE warning
is generated. You can use this warning to detect the error and restore the database from the backup version.