Android Studio SQLiteOpenHelper "DATABSE hat keine Spalte namens NAME"

Question

Ich weiß, das wurde gefragt, aber ich habe alle anderen Fragen überprüft und keine Mein Problem behoben.

Dies ist die Ausnahme:

E/SQLiteLog: (1) table Traust_Du_Dich_App has no column named name 
E/SQLiteDatabase: Error inserting name=Loras gender=Male birthday=21 
android.database.sqlite.SQLiteException: table Traust_Du_Dich_App has no column named name (code 1): , while compiling: INSERT INTO Traust_Du_Dich_App(name,gender,birthday) VALUES (?,?,?) 
    at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) 
    at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:887) 
    at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:498) 
    at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 
    at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58) 
    at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31) 
    at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1469) 
    at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1341) 
    at com.lukas.saufapp.MyDbHandler.addProduct(MyDbHandler.java:57) 
    at com.lukas.saufapp.MainActivity$3.onClick(MainActivity.java:232) 
    at android.view.View.performClick(View.java:5198) 
    at android.view.View$PerformClick.run(View.java:21147) 
    at android.os.Handler.handleCallback(Handler.java:739) 
    at android.os.Handler.dispatchMessage(Handler.java:95) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5417) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

Dies ist helperClass:

public class MyDbHandler extends SQLiteOpenHelper { 
    private static final int DATABASE_VERSION = 2; 
    private static final String DATABASE_NAME = "quadstudios_de"; 
    private static final String TABLE_PRODUCTS = "Traust_Du_Dich_App"; 

    public static final String COLUMN_ID = "id"; 
    public static final String COLUMN_NAME = "name"; 
    public static final String COLUMN_GENDER = "gender"; 
    public static final String COLUMN_BDAY = "birthday"; 

    public MyDbHandler(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) { 
     super(context, DATABASE_NAME, factory, DATABASE_VERSION); 
    } 

    @Override 
    public void onCreate(SQLiteDatabase db) { 
     String CREATE_PRODUCTS_TABLE = "CREATE TABLE " + TABLE_PRODUCTS + "(" + COLUMN_ID + " INTEGER PRIMARY KEY," + COLUMN_NAME + " TEXT," + COLUMN_GENDER + " TEXT," + COLUMN_BDAY + " TEXT" + ")"; 

     db.execSQL(CREATE_PRODUCTS_TABLE); 
    } 

    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
     db.execSQL("DROP TABLE IF EXISTS " + TABLE_PRODUCTS); 
     onCreate(db); 
    } 

    public void AddUser(User user) { 

     ContentValues values = new ContentValues(); 
     values.put(COLUMN_NAME, user.Name); 
     values.put(COLUMN_GENDER, user.Gender); 
     values.put(COLUMN_BDAY, user.Birthday); 

     SQLiteDatabase db = this.getWritableDatabase(); 

     db.insert(TABLE_PRODUCTS, null, values); 
     db.close(); 
    } 
} 

Hier nenne ich es:

Btn_FaceBook.setOnClickListener(new View.OnClickListener() { 
    @Override 
    public void onClick(View v) { 
     MyDbHandler handler = new MyDbHandler(MainActivity.this, null, null, 1); 
     User user = new User("Thomas", "Male", "21"); 
     handler.AddUser(user); 
} 

Answer 1

Das einzige Problem, das ich denken kann, nicht aktualisiert deine Versionsnummer Wenn Sie die Spalten in der Datenbank ändern, müssen Sie auch die Versionsnummer aktualisieren.

Statt dessen:

private static final int DATABASE_VERSION = 2; 

Try this:

private static final int DATABASE_VERSION = 3;