SQLiteConstraintException 오류 코드 19에 대해 수행 할 수있는 작업은 무엇입니까?

Question

오류 코드 19에 대해 어떻게해야합니까? 이것은 내 DatabaseAdapter입니다

06-05 23:57:53.607: E/AndroidRuntime(549): android.database.sqlite.SQLiteConstraintException: error code 19: constraint failed 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.database.sqlite.SQLiteStatement.native_execute(Native Method) 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.database.sqlite.SQLiteStatement.executeUpdateDelete(SQLiteStatement.java:92) 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.database.sqlite.SQLiteDatabase.updateWithOnConflict(SQLiteDatabase.java:1810) 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.database.sqlite.SQLiteDatabase.update(SQLiteDatabase.java:1761) 
06-05 23:57:53.607: E/AndroidRuntime(549): at com.xyz.android.taskreminder.RemindersDbAdapter.updateReminder(RemindersDbAdapter.java:204) 
06-05 23:57:53.607: E/AndroidRuntime(549): at com.xyz.android.taskreminder.ReminderEditActivity.saveState(ReminderEditActivity.java:333) 
06-05 23:57:53.607: E/AndroidRuntime(549): at com.xyz.android.taskreminder.ReminderEditActivity.access$0(ReminderEditActivity.java:316) 
06-05 23:57:53.607: E/AndroidRuntime(549): at com.xyz.android.taskreminder.ReminderEditActivity$3.onClick(ReminderEditActivity.java:161) 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.view.View.performClick(View.java:3511) 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.view.View$PerformClick.run(View.java:14105) 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.os.Handler.handleCallback(Handler.java:605) 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.os.Handler.dispatchMessage(Handler.java:92) 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.os.Looper.loop(Looper.java:137) 
06-05 23:57:53.607: E/AndroidRuntime(549): at android.app.ActivityThread.main(ActivityThread.java:4424) 
06-05 23:57:53.607: E/AndroidRuntime(549): at java.lang.reflect.Method.invokeNative(Native Method) 
06-05 23:57:53.607: E/AndroidRuntime(549): at java.lang.reflect.Method.invoke(Method.java:511) 
06-05 23:57:53.607: E/AndroidRuntime(549): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
06-05 23:57:53.607: E/AndroidRuntime(549): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
06-05 23:57:53.607: E/AndroidRuntime(549): at dalvik.system.NativeStart.main(Native Method) 

: 나는 로그 캣을 게시 한 내 DatabaseAdapter (RemindersDbAdapter) 내가 생각하는 RemindersEditActivity의 일부 코드는 문제 (라인 316- 336)이 내 로그 캣이

입니다 원인 :

:

public class RemindersDbAdapter { 

// 
// Databsae Related Constants 
// 
private static final String DATABASE_NAME = "data"; 
private static final String DATABASE_TABLE = "reminders"; 
private static final int DATABASE_VERSION = 10; 

public static final String KEY_TITLE = "title"; 
public static final String KEY_BODY = "body"; 
public static final String KEY_IMAGE = "image"; 
public static final String KEY_DATE_TIME = "reminder_date_time"; 
public static final String KEY_ROWID = "_id"; 


private static final String TAG = "ReminderDbAdapter"; 
private DatabaseHelper mDbHelper; 
private SQLiteDatabase mDb; 

/** 
* Database creation SQL statement 
*/ 
private static final String DATABASE_CREATE = 
     "create table " + DATABASE_TABLE + " (" 
       + KEY_ROWID + " integer primary key autoincrement, " 
       + KEY_TITLE + " text not null, " 
       + KEY_BODY + " text not null, " 
       + KEY_IMAGE + " text not null, " 
       + KEY_DATE_TIME + " text not null);"; 



private final Context mCtx; 

private static class DatabaseHelper extends SQLiteOpenHelper { 

    DatabaseHelper(Context context) { 
     super(context, DATABASE_NAME, null, DATABASE_VERSION); 
    } 

    @Override 
    public void onCreate(SQLiteDatabase db) { 

     db.execSQL(DATABASE_CREATE); 
     db.execSQL("PRAGMA foreign_keys = OFF;"); 
    } 

    @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 " + DATABASE_TABLE); 
     onCreate(db); 
    } 
} 

/** 
* Constructor - takes the context to allow the database to be 
* opened/created 
* 
* @param ctx the Context within which to work 
*/ 
public RemindersDbAdapter(Context ctx) { 
    this.mCtx = ctx; 
} 

public RemindersDbAdapter open() throws SQLException { 
    mDbHelper = new DatabaseHelper(mCtx); 
    mDb = mDbHelper.getWritableDatabase(); 
    return this; 
} 

public void close() { 
    mDbHelper.close(); 
} 


public long createReminder(String title, String body, String path, String reminderDateTime) { 
    ContentValues initialValues = new ContentValues(); 
    initialValues.put(KEY_TITLE, title); 
    initialValues.put(KEY_BODY, body); 
    initialValues.put(KEY_IMAGE, path); 
    initialValues.put(KEY_DATE_TIME, reminderDateTime); 

    return mDb.insert(DATABASE_TABLE, null, initialValues); 
} 

public boolean deleteReminder(long rowId) { 

    return mDb.delete(DATABASE_TABLE, KEY_ROWID + "=" + rowId, null) > 0; 
} 


public Cursor fetchAllReminders() { 

    return mDb.query(DATABASE_TABLE, new String[] {KEY_ROWID, KEY_TITLE, 
      KEY_BODY, KEY_IMAGE, KEY_DATE_TIME}, null, null, null, null, null); 
} 


public Cursor fetchReminder(long rowId) throws SQLException { 

    Cursor mCursor = 

      mDb.query(true, DATABASE_TABLE, new String[] {KEY_ROWID, 
        KEY_TITLE, KEY_BODY, KEY_IMAGE, KEY_DATE_TIME}, KEY_ROWID + "=" + rowId, null, 
        null, null, null, null); 
    if (mCursor != null) { 
     mCursor.moveToFirst(); 
    } 
    return mCursor; 

} 

// Fetches a single image 
public Cursor fetchImage(long rowId) throws SQLException { 

    Cursor mCursor = 

      mDb.query(true, DATABASE_TABLE, new String[] {KEY_ROWID, 
        KEY_IMAGE}, KEY_ROWID + "=" + rowId, null, 
        null, null, null, null); 
    if (mCursor != null) { 
     mCursor.moveToFirst(); 
    } 
    return mCursor; 

} 



public boolean updateReminder(long rowId, String title, String body, String path, String reminderDateTime) { 
    ContentValues args = new ContentValues(); 
    args.put(KEY_TITLE, title); 
    args.put(KEY_BODY, body); 
    args.put(KEY_IMAGE, path); 
    args.put(KEY_DATE_TIME, reminderDateTime); 

    return mDb.update(DATABASE_TABLE, args, KEY_ROWID + "=" + rowId, null) > 0; 
} 

은}

이 내 RemindersEditActivity 라인 316- 336입니다

// 
// Saves the content by communicating with the RemindersDbAdapter. 
// 
private void saveState() { 
    String title = mTitleText.getText().toString(); 
    String body = mBodyText.getText().toString(); 

    String path = (String)mImageView.getTag(); 

    SimpleDateFormat dateTimeFormat = new SimpleDateFormat(DATE_TIME_FORMAT); 
    String reminderDateTime = dateTimeFormat.format(mCalendar.getTime()); 

    // Creates a new reminder if the value is null. 
    if (mRowId == null) { 
     long id = mDbHelper.createReminder(title, body, path, reminderDateTime); 
     if (id > 0) { 
      mRowId = id; 
     } 
    // Updates the reminder if the content is not null.  
    } else { 
     mDbHelper.updateReminder(mRowId, title, body, path, reminderDateTime); 

    } 
} 

Answer 1

글쎄, 유일한 제약 조건은 "not null"이므로 null 값이있는 열을 삽입하지 마십시오.

업데이트에서 발생하므로 디버거를 사용하여 null로 들어오는 모든 매개 변수를 확인하십시오.

다른 옵션은 물론 null이 아닌 제약 조건을 제거하는 것입니다 (DB 업데이트/재생성 필요).