SQLiteException: нет такой таблицы?

Прежде всего, я проверил другой подобный поток здесь, но ничего не работает для меня. Но тогда это мое первое приложение для Android, поэтому, возможно, есть что-то, что я забыл или не понял. Во всяком случае, вот мои коды.SQLiteException: нет такой таблицы?

MyContentProvider.java

@SuppressWarnings("ConstantConditions") 
public class MyContentProvider extends ContentProvider { 

private DbHelper dbHelper; 

private static final String BASE_PATH_ITEM = "items"; 
private static final String AUTHORITY = "data.MyContentProvider"; 
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/" + BASE_PATH_ITEM); 
private static final int ITEM = 100; 
private static final int ITEMS = 101; 


private static final UriMatcher URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH); 
static { 
    URI_MATCHER.addURI(AUTHORITY, BASE_PATH_ITEM, ITEM); 
    URI_MATCHER.addURI(AUTHORITY, BASE_PATH_ITEM + "/#", ITEMS); 


} 

private void checkColumns(String[] projection) { 
    if (projection != null) { 
     HashSet<String> requestedColumns = new HashSet<String>(Arrays.asList(projection)); 
     HashSet<String> availableColumns = new HashSet<String>(Arrays.asList(Constants.COLUMNS)); 
     if (!availableColumns.containsAll(requestedColumns)) { 
      throw new IllegalArgumentException("Unknown columns in projection"); 
     } 
    } 
} 

@Override 
public boolean onCreate() { 
    dbHelper = new DbHelper(getContext()); 
    return false; 
} 

@Override 
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { 
    SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder(); 
    checkColumns(projection); 
    queryBuilder.setTables(Constants.ITEM_TABLE); 

    int type = URI_MATCHER.match(uri); 
    switch (type){ 
     case ITEM: 
      //there is not to do if the query is for the table 
      break; 
     case ITEMS: 
      queryBuilder.appendWhere(Constants.COLUMN_ID + " = " + uri.getLastPathSegment()); 
      break; 
     default: 
      throw new IllegalArgumentException("Unknown URI: " + uri); 
    } 
    SQLiteDatabase db = dbHelper.getWritableDatabase(); 
    Cursor cursor = queryBuilder.query(db, projection, selection, selectionArgs, null, null, sortOrder); 
    cursor.setNotificationUri(getContext().getContentResolver(), uri); 
    return cursor; 
} 

@Override 
public String getType(Uri uri) { 
    return null; 
} 

@Override 
public Uri insert(Uri uri, ContentValues values) { 
    int type = URI_MATCHER.match(uri); 
    SQLiteDatabase db = dbHelper.getWritableDatabase(); 
    Long id; 
    switch (type){ 
     case ITEMS: 
      id = db.insert(Constants.ITEM_TABLE, null, values); 
      break; 
     default: 
      throw new IllegalArgumentException("Unknown URI: " + uri); 
    } 
    getContext().getContentResolver().notifyChange(uri, null); 
    return Uri.parse(BASE_PATH_ITEM + "/" + id); 
} 


@Override 
public int delete(Uri uri, String selection, String[] selectionArgs) { 
    int type = URI_MATCHER.match(uri); 
    SQLiteDatabase db = dbHelper.getWritableDatabase(); 
    int rowsDeleted; 
    switch (type) { 
     case ITEM: 
      rowsDeleted = db.delete(Constants.ITEM_TABLE, selection, selectionArgs); 
      break; 

     case ITEMS: 
      String id = uri.getLastPathSegment(); 
      if (TextUtils.isEmpty(selection)) { 
       rowsDeleted = db.delete(Constants.ITEM_TABLE, Constants.COLUMN_ID + "=" + id, null); 
      } else { 
       rowsDeleted = db.delete(Constants.ITEM_TABLE, Constants.COLUMN_ID + "=" + id + " and " + selection, selectionArgs); 
      } 
      break; 

     default: 
      throw new IllegalArgumentException("Unknown URI: " + uri); 
    } 
    getContext().getContentResolver().notifyChange(uri, null); 
    return rowsDeleted; 
} 


@Override 
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { 
    int type = URI_MATCHER.match(uri); 
    SQLiteDatabase db = dbHelper.getWritableDatabase(); 
    int rowsUpdated; 
    switch (type) { 
     case ITEM: 
      rowsUpdated = db.update(Constants.ITEM_TABLE, values, selection, selectionArgs); 
      break; 

     case ITEMS: 
      String id = uri.getLastPathSegment(); 
      if (TextUtils.isEmpty(selection)) { 
       rowsUpdated = db.update(Constants.ITEM_TABLE, values, Constants.COLUMN_ID + "=" + id, null); 
      } else { 
       rowsUpdated = db.update(Constants.ITEM_TABLE, values, Constants.COLUMN_ID + "=" + id + " and " + selection, selectionArgs); 
      } 
      break; 

     default: 
      throw new IllegalArgumentException("Unknown URI: " + uri); 
    } 
    getContext().getContentResolver().notifyChange(uri, null); 
    return rowsUpdated; 
} 
}

DBHelper.java

public class DbHelper extends SQLiteOpenHelper { 

private static final String DATABASE_NAME = "MyApp.db"; 
private static final int DATABASE_VERSION = 1; 

//create item table statement 
private static final String CREATE_TABLE_ITEM = "create item table " 
     + Constants.ITEM_TABLE 
     + "(" 
     + Constants.COLUMN_ID + " integer primary key autoincrement, " 
     + Constants.COLUMN_ITEM + " text not null, " 
     + Constants.COLUMN_QUANTITY + " integer not null, " 
     + Constants.COLUMN_UNIT + " integer not null, " 
     + Constants.COLUMN_PRICE + " integer not null, " 
     + Constants.COLUMN_STORE + " text not null, " 
     + ")"; 

public DbHelper(Context context) { 

    super(context, DATABASE_NAME, null, DATABASE_VERSION); 
} 


@Override 
public void onCreate(SQLiteDatabase db) { 

    String CREATE_TABLE_ITEM = "create item table " 
      + Constants.ITEM_TABLE 
      + "(" 
      + Constants.COLUMN_ID + " integer primary key autoincrement, " 
      + Constants.COLUMN_ITEM + " text not null, " 
      + Constants.COLUMN_QUANTITY + " integer not null, " 
      + Constants.COLUMN_UNIT + " integer not null, " 
      + Constants.COLUMN_PRICE + " integer not null, " 
      + Constants.COLUMN_STORE + " text not null, " 
      + ")"; 

    //create the required table 
    db.execSQL(CREATE_TABLE_ITEM); 

} 

@Override 
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
    db.execSQL("DROP TABLE IF EXISTS " + Constants.ITEM_TABLE); 
    //create new table 
    onCreate(db); 
} 
}

Constants.java

public class Constants { 

public static final String ITEM_TABLE = "items"; 

public static final String COLUMN_ID = "_id"; 
public static final String COLUMN_ITEM = "item"; 
public static final String COLUMN_QUANTITY = "quantity"; 
public static final String COLUMN_UNIT = "unit"; 
public static final String COLUMN_PRICE = "price"; 
public static final String COLUMN_STORE = "store"; 

public static final String[] COLUMNS = { 
     Constants.COLUMN_ID, 
     Constants.COLUMN_ITEM, 
     Constants.COLUMN_QUANTITY, 
     Constants.COLUMN_UNIT, 
     Constants.COLUMN_PRICE, 
     Constants.COLUMN_STORE 

}; 
}

Logcat

java.lang.RuntimeException: Unable to start activity ComponentInfo{*package name removed*.activities.MainActivity}: android.database.sqlite.SQLiteException: no such table: items (code 1): , while compiling: SELECT _id, item, quantity, unit, price, store FROM items 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233) 
at android.app.ActivityThread.access$800(ActivityThread.java:135) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5001) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: android.database.sqlite.SQLiteException: no such table: items (code 1): , while compiling: SELECT _id, item, quantity, unit, price, store FROM items 
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) 
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889) 
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500) 
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58) 
at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37) 
at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44) 
at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314) 
at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:400) 
at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:294) 
at *package name removed*.data.GPContentProvider.query(GPContentProvider.java:75) 
at android.content.ContentProvider.query(ContentProvider.java:857) 
at android.content.ContentProvider$Transport.query(ContentProvider.java:200) 
at android.content.ContentResolver.query(ContentResolver.java:461) 
at android.content.ContentResolver.query(ContentResolver.java:404) 
at zarry.gptest.data.ItemManager.getAllItems(ItemManager.java:63) 
at *package name removed*.fragments.ItemListFragment.setupList(ItemListFragment.java:96) 
at *package name removed*.fragments.ItemListFragment.onCreateView(ItemListFragment.java:50) 
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1965) 
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1078) 
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1259) 
at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:738) 
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1624) 
at android.support.v4.app.FragmentController.execPendingActions(FragmentController.java:330) 
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:547) 
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1171) 
at android.app.Activity.performStart(Activity.java:5241) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2157) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)  
at android.app.ActivityThread.access$800(ActivityThread.java:135)  
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)  
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:136) 
at android.app.ActivityThread.main(ActivityThread.java:5001)  
at java.lang.reflect.Method.invokeNative(Native Method)  
at java.lang.reflect.Method.invoke(Method.java:515)  
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)  
at dalvik.system.NativeStart.main(Native Method)

Заранее спасибо

источник

2015-11-24 Joan Z

ваш создать таблицу запроса неправильно. У вас есть

String CREATE_TABLE_ITEM = "create item table "

элемент между create и table

Это должно быть

String CREATE_TABLE_ITEM = "create table " + Constants.ITEM_TABLE ..

источник

2015-11-24 16:23:58 Blackbelt

Я изменил его, но я все еще получаю ту же ошибку –

вы должны удалить приложение и переустановить его снова. SQLiteOpenHelper вызывается только тогда, когда база данных не существует или когда вы меняете номер версии – Blackbelt

Я знаю, что я могу походить на noob, но вы хотите удалить приложение в студии Android? =/ –

Вы пропустили пробел:

создание таблицы элементы здесь (_id целое

и лишняя запятая:

магазин текст не пустой, < -это)

и добавить точку с запятой в конце.

String CREATE_TABLE_ITEM = "create table " 
     + Constants.ITEM_TABLE 
     + " (" 
     + Constants.COLUMN_ID + " integer primary key autoincrement, " 
     + Constants.COLUMN_ITEM + " text not null, " 
     + Constants.COLUMN_QUANTITY + " integer not null, " 
     + Constants.COLUMN_UNIT + " integer not null, " 
     + Constants.COLUMN_PRICE + " integer not null, " 
     + Constants.COLUMN_STORE + " text not null);";

источник

2015-11-27 06:00:32 Dobry

SQLiteException: нет такой таблицы?

ответ

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