![]() ![]() )' on a null object reference atĬom.(MyDatabase.java:107)Ĭom.$2.onClick(SearchFragment. : Attempt to invoke virtual methodĪ.rawQuery(, This is the button click listener and autoname is Autotextview b1.setOnClickListener(new View.OnClickListener() void onClick(View v) ) ![]() Import am creating an app Where the user can search database with inputs provided by user through edittext boxes.I am passing them to the database file as string argument to query and I am getting error.attaching the code The keyword AUTOINCREMENT can be used with INTEGER field only. We can auto increment a field value by using AUTOINCREMENT keyword when creating a table with specific column name to auto incrementing it. So I ended up going with a different method that worked out quite well. SQLite AUTOINCREMENT is a keyword used for auto incrementing a value of a field in the table. You have to delete the database, the easiest way is to uninstall the App and rerun the App. HOWEVER, I suspect that you ongoing issue might be that you are unaware that once the database exists be it empty of tables or not, then if exists and the copy from the asset will not replace the database. However, you will notice that the getInstance method does in fact use getWritableDatabase (getReadableDatabase actually gets a writable database unless there are issues in that the database cannot be written to). ![]() The Working Example above does away with the loadHandler. Public class MainActivity extends AppCompatActivity String result = "" SQLiteDatabase db = this.getReadableDatabase() Might be creating still the issue. I've gone over this for hours and can't see what is going on her is my code The program crashes every time saying the table I am querying can't be found, but it also seems that all of the try catch statements are being overlooked in that I deleted the database from my assets folder and it still is giving me the same response. So I found a video online that walks you through the whole process of simply displaying a SQLite database, and once I get this down I can move forward but I can not seem to get it to work. ![]()
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