Question

i was published android apps using sqlite in local db.now i am add one more table in that db.how to upgrade existing db to user.i.e user data can’t delete.only my update will effect when user update previous apps version.how to handle this issue?how to republish my application?

Thanks in advance…

Answer 1

You have to override onUpgrade method of SQLiteOpenHelper

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion){
        db.execSQL(CREATE_NEW_TABLE);//create your new table
        //execute other sql statements if required
}

Did in one of my project here is Link. Hope this help