如何通过Asset文件夹在Android中手动实现Sqlite数据库升级？

Question

I want to make db version control for Sqlite .db file which is inside my asset folder Manually without Google play app store. (as its custom app for user). First deployment I have db version 1.00 after that Second deployment I have version 1.01 with some DB file changes for column name or type changes in certain table.

How can i achieve without uninstalling db from installed app. just replacing existing DB for particular column?

Also don't want to loose users data.(as there are some master tables).

please see this answer too .

Question1

Question2

Answer 1

您需要对所有表执行SELECT * FROM TABLE_NAME类的请求，并将获取的数据以字符串形式保存在任何文件中。