SQLiteException：そのような列エラーはありません

Question

私はSOを見て、この同じエラーを持つ多くの人を見つけましたが、作成ステートメントに列を追加することを忘れているか、空白がありません。

次のように私のlogcatは、次のとおりです。

E/AndroidRuntime: FATAL EXCEPTION: main 
Process: com.gmd.referenceapplication, PID: 31988 
android.database.sqlite.SQLiteException: no such column: QUANTITY (code 1): , while compiling: SELECT * FROM FTS WHERE (QUANTITY MATCH ?) 
    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.SQLiteQuery.<init>(SQLiteQuery.java:37) 
    at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44) 
    at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1316) 
    at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:400) 
    at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:294) 
    at com.gmd.referenceapplication.DatabaseTable.query(DatabaseTable.java:187) 
    at com.gmd.referenceapplication.DatabaseTable.getWordMatches(DatabaseTable.java:179) 
    at com.gmd.referenceapplication.SearchableActivity$1.onQueryTextChange(SearchableActivity.java:70) 
    at android.support.v7.widget.SearchView.onTextChanged(SearchView.java:1150) 
    at android.support.v7.widget.SearchView.access$2000(SearchView.java:103) 
    at android.support.v7.widget.SearchView$12.onTextChanged(SearchView.java:1680) 
    at android.widget.TextView.sendOnTextChanged(TextView.java:7991) 
    at android.widget.TextView.handleTextChanged(TextView.java:8053) 
    at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:10157) 
    at android.text.SpannableStringBuilder.sendTextChanged(SpannableStringBuilder.java:1033) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:559) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:492) 
    at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:491) 
    at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:685) 
    at android.view.inputmethod.BaseInputConnection.setComposingText(BaseInputConnection.java:445) 
    at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:340) 
    at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:78) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5417) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

DatabaseTableクラス：

public static final String TAG = "ConstantDatabase"; 

//the columns included in the table 
public static final String COL_QUANTITY = "QUANTITY"; 
public static final String COL_VALUE = "VALUE"; 
public static final String COL_UNCERTAINTY = "UNCERTAINTY"; 
public static final String COL_UNIT = "UNIT"; 
public static final String _id = "_id"; 
//name, tbale name, version 
private static final String DATABASE_NAME = "CONSTANTS"; 
private static final String FTS_VIRTUAL_TABLE = "FTS"; 
private static final int DATABASE_VERSION = 1; 


private final DatabaseOpenHelper mDatabaseOpenHelper; 
private final Context mcontext; 

public DatabaseTable(Context context){ 
    mDatabaseOpenHelper = new DatabaseOpenHelper(context); 
    mcontext = context; 
} 

private class DatabaseOpenHelper extends SQLiteOpenHelper { 

    private final Context mHelperContext; 
    private SQLiteDatabase mDatabase; 
    private final MyDataProvider dp = new MyDataProvider(mcontext); 

    private static final String FTS_TABLE_CREATE = 
      "CREATE VIRTUAL TABLE " + FTS_VIRTUAL_TABLE + 
        " USING fts3 (" +_id+ " INTEGER PRIMARY KEY,"+ 
        COL_QUANTITY + " TEXT, " + 
        COL_VALUE + " TEXT," + 
        COL_UNCERTAINTY + " TEXT," + 
        COL_UNIT + " TEXT " + ")"; 

    public DatabaseOpenHelper(Context context) { 
     super(context, DATABASE_NAME, null, DATABASE_VERSION); 
     loadConstants(); 
     Log.e("Database Operation", "DatabaseOpenHelper constructor called, constants loaded?"); 
     mHelperContext = context; 
    } 

    @Override 
    public void onCreate(SQLiteDatabase db) { 
     mDatabase = db; 
     mDatabase.execSQL(FTS_TABLE_CREATE); 
     Log.e("Database Operation", "Constants Table Created ..."); 
     loadConstants(); 
    } 

    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
     Log.w(TAG, "Upgrading database from version " + oldVersion + " to " 
       + newVersion + ", which will destroy all old data"); 
     db.execSQL("DROP TABLE IF EXISTS " + FTS_VIRTUAL_TABLE); 
     onCreate(db); 
    } 

    public SQLiteDatabase getmDatabase(){ 
     return mDatabase; 
    } 

    private void loadConstants() { 
     new Thread(new Runnable() { 
      public void run() { 
       try { 
        loadConstantss(); 
       } catch (IOException e) { 
        throw new RuntimeException(e); 
       } 
      } 
     }).start(); 
     Log.e("Loading", "Constants Table Populated ..."); 
    } 

    private void loadConstantss() throws IOException { 
     HashMap map = dp.getAllMap(); 
     Iterator<Map.Entry<String, ListViewItem>> entries = map.entrySet().iterator(); 
     while (entries.hasNext()) { 
      Map.Entry<String, ListViewItem> entry = entries.next(); 
      Log.d("thing:", entry.getKey()); 
      //addConstant(entry.getKey(), entry.getValue(), entry.getUncertainty(), entry.getUnit()); 
     } 
    } 

    public long addConstant(String quantity, String value, String uncertainty, String unit) { 
     SQLiteDatabase db = this.getWritableDatabase(); 
     ContentValues initialValues = new ContentValues(); 
     initialValues.put(COL_QUANTITY, quantity); 
     initialValues.put(COL_VALUE, value); 
     initialValues.put(COL_UNCERTAINTY, uncertainty); 
     initialValues.put(COL_UNIT, unit); 
     db.insert(FTS_VIRTUAL_TABLE, null, initialValues); 
     return db.insert(FTS_VIRTUAL_TABLE, null, initialValues); 
    } 
    //database openhelper ends 
} 

public Cursor getWordMatches(String query, String[] columns) { 
    String selection = COL_QUANTITY + " MATCH ?"; 
    String[] selectionArgs = new String[] {query+"*"}; 
    return query(selection, selectionArgs, columns); 
} 


public Cursor query(String selection, String[] selectionArgs, String[] columns) { 
    SQLiteQueryBuilder builder = new SQLiteQueryBuilder(); 
    builder.setTables(FTS_VIRTUAL_TABLE); 

    Cursor cursor = builder.query(mDatabaseOpenHelper.getReadableDatabase(), 
      columns, selection, selectionArgs, null, null, null); 

    if (cursor == null) { 
     return null; 
    } else if (!cursor.moveToFirst()) { 
     cursor.close(); 
     return null; 
    } 
    return cursor; 
} 

public Cursor getAllTitles(){ 
    return mDatabaseOpenHelper.getmDatabase().query(FTS_VIRTUAL_TABLE, new String[] { 
        COL_QUANTITY, 
        COL_UNCERTAINTY, 
        COL_UNIT, 
        COL_VALUE}, 
      null, 
      null, 
      null, 
      null, 
      null); 
} 

は、それがコラム「数量」が作成されていない私に言っている理由を私に伝えることができます誰にもありがとう私は本当に知らない。

Answer 1

スキーマを変更する場合は、DATABASE_VERSIONを増分してデータベースをアップグレードする必要があります。