Android SQLiteConstraintException：错误代码19：约束失败

I've seen other questions about this exception, but all of them seem to be resolved with the solution that a row with the primary key specified already exists. This doesn't seem to be the case for me. I have tried replacing all single quotes in my strings with double quotes, but the same problem occurs.

我已经看到了有关此异常的其他问题,但所有这些问题似乎都得到了解决方案的解决,即已经存在指定主键的行。对我来说,情况似乎并非如此。我试过用双引号替换我的字符串中的所有单引号,但同样的问题出现了。

I'm trying to insert a row into the Settings table of the SQLite database I've created by doing the following:

我正在尝试通过执行以下操作在我创建的SQLite数据库的Settings表中插入一行:

db.execSQL("DROP TABLE IF EXISTS "+Settings.SETTINGS_TABLE_NAME + ";");
db.execSQL(CREATE_MEDIA_TABLE);
db.execSQL(CREATE_SETTINGS_TABLE);
Cursor c = getAllSettings();
//If there isn't already a settings row, create a row full of defaults
if(c.getCount()==0){
    ContentValues cv  = new ContentValues();
    cv.put(Settings.SETTING_UNIQUE_ID, "'"+Settings.uniqueID+"'");          
    cv.put(Settings.SETTING_DEVICE_ID, Settings.SETTING_DEVICE_ID_DEFAULT);
    cv.put(Settings.SETTING_CONNECTION_PREFERENCE, Settings.SETTING_CONNECTION_PREFERENCE_DEFAULT);
    cv.put(Settings.SETTING_AD_HOC_ENABLED, Settings.SETTING_AD_HOC_ENABLED_DEFAULT);
    cv.put(Settings.SETTING_SERVER_ADDRESS, Settings.SETTING_SERVER_ADDRESS_DEFAULT);
    cv.put(Settings.SETTING_RECORDING_MODE, Settings.SETTING_RECORDING_MODE_DEFAULT);
    cv.put(Settings.SETTING_PREVIEW_ENABLED, Settings.SETTING_PREVIEW_ENABLED_DEFAULT);
    cv.put(Settings.SETTING_PICTURE_RESOLUTION_X, Settings.SETTING_PICTURE_RESOLUTION_X_DEFAULT);
    cv.put(Settings.SETTING_PICTURE_RESOLUTION_Y, Settings.SETTING_PICTURE_RESOLUTION_Y_DEFAULT);
    cv.put(Settings.SETTING_VIDEO_RESOLUTION_X, Settings.SETTING_VIDEO_RESOLUTION_X_DEFAULT);
    cv.put(Settings.SETTING_VIDEO_RESOLUTION_Y, Settings.SETTING_VIDEO_RESOLUTION_Y_DEFAULT);
    cv.put(Settings.SETTING_VIDEO_FPS, Settings.SETTING_VIDEO_FPS_DEFAULT);
    cv.put(Settings.SETTING_AUDIO_BITRATE_KBPS, Settings.SETTING_AUDIO_BITRATE_KBPS_DEFAULT);
    cv.put(Settings.SETTING_STORE_TO_SD, Settings.SETTING_STORE_TO_SD_DEFAULT);
    cv.put(Settings.SETTING_STORAGE_LIMIT_MB, Settings.SETTING_STORAGE_LIMIT_MB_DEFAULT);

    this.db.insert(Settings.SETTINGS_TABLE_NAME, null, cv);
}

The CREATE_SETTINGS_TABLE string is defined as the following:

CREATE_SETTINGS_TABLE字符串定义如下:

private static String CREATE_SETTINGS_TABLE = "CREATE TABLE IF NOT EXISTS " + Settings.SETTINGS_TABLE_NAME + "("
+ Settings.SETTING_UNIQUE_ID + " TEXT NOT NULL PRIMARY KEY, "
+ Settings.SETTING_DEVICE_ID + " TEXT NOT NULL , "
+ Settings.SETTING_CONNECTION_PREFERENCE + " TEXT NOT NULL CHECK("+Settings.SETTING_CONNECTION_PREFERENCE+" IN("+Settings.SETTING_CONNECTION_PREFERENCE_ALLOWED+")), "
+ Settings.SETTING_AD_HOC_ENABLED + " TEXT NOT NULL CHECK("+Settings.SETTING_AD_HOC_ENABLED+" IN("+Settings.SETTING_AD_HOC_ENABLED_ALLOWED+")), "
+ Settings.SETTING_SERVER_ADDRESS + " TEXT NOT NULL, "
+ Settings.SETTING_RECORDING_MODE + " TEXT NOT NULL CHECK("+Settings.SETTING_RECORDING_MODE+" IN("+Settings.SETTING_RECORDING_MODE_ALLOWED+")), "
+ Settings.SETTING_PREVIEW_ENABLED + " TEXT NOT NULL CHECK("+Settings.SETTING_PREVIEW_ENABLED+" IN("+Settings.SETTING_PREVIEW_ENABLED_ALLOWED+")), "
+ Settings.SETTING_PICTURE_RESOLUTION_X + " TEXT NOT NULL, "
+ Settings.SETTING_PICTURE_RESOLUTION_Y + " TEXT NOT NULL, "
+ Settings.SETTING_VIDEO_RESOLUTION_X + " TEXT NOT NULL, "
+ Settings.SETTING_VIDEO_RESOLUTION_Y + " TEXT NOT NULL, "
+ Settings.SETTING_VIDEO_FPS + " TEXT NOT NULL, "
+ Settings.SETTING_AUDIO_BITRATE_KBPS + " TEXT NOT NULL, "
+ Settings.SETTING_STORE_TO_SD + " TEXT NOT NULL CHECK("+Settings.SETTING_STORE_TO_SD+" IN("+Settings.SETTING_STORE_TO_SD_ALLOWED+")), "
+ Settings.SETTING_STORAGE_LIMIT_MB + " TEXT NOT NULL )";

However, when I execute my insert, I always get:

但是,当我执行我的插入时,我总是得到:

03-19 19:37:36.974: ERROR/Database(386): Error inserting server_address='0.0.0.0' storage_limit='-1' connection='none' preview_enabled='0' sd_enabled='1' video_fps='15' audio_bitrate='96' device_id='-1' recording_mode='none' picture_resolution_x='-1' picture_resolution_y='-1' unique_id='000000000000000' adhoc_enable='0' video_resolution_x='320' video_resolution_y='240'
03-19 19:45:34.284: ERROR/Database(446): android.database.sqlite.SQLiteConstraintException: error code 19: constraint failed

It seems as if all the columns in my insert are not null. The row's primary key HAS to be unique, because it's the only row in the table. Therefore, the only thing I can think of is my CHECK conditions aren't true. Here are the predefined strings I'm using:

好像插入中的所有列都不是null。该行的主键是唯一的,因为它是表中唯一的行。因此,我唯一能想到的是我的CHECK条件不正确。以下是我正在使用的预定义字符串:

public static final String SETTING_UNIQUE_ID = "unique_id";

public static final String SETTING_DEVICE_ID = "device_id";
public static final String SETTING_DEVICE_ID_DEFAULT = "'-1'";

public static final String SETTING_CONNECTION_PREFERENCE = "connection";
public static final String SETTING_CONNECTION_PREFERENCE_3G = "'3g'";
public static final String SETTING_CONNECTION_PREFERENCE_WIFI = "'wifi'";
public static final String SETTING_CONNECTION_PREFERENCE_NONE = "'none'";
public static final String SETTING_CONNECTION_PREFERENCE_ALLOWED = SETTING_CONNECTION_PREFERENCE_3G+","+SETTING_CONNECTION_PREFERENCE_WIFI+","+SETTING_CONNECTION_PREFERENCE_NONE;
public static final String SETTING_CONNECTION_PREFERENCE_DEFAULT = SETTING_CONNECTION_PREFERENCE_NONE;

public static final String SETTING_AD_HOC_ENABLED = "adhoc_enable";
public static final String SETTING_AD_HOC_ENABLED_ALLOWED = TRUE+","+FALSE;
public static final String SETTING_AD_HOC_ENABLED_DEFAULT = FALSE;

public static final String SETTING_SERVER_ADDRESS = "server_address";
public static final String SETTING_SERVER_ADDRESS_DEFAULT = "'0.0.0.0'";

public static final String SETTING_RECORDING_MODE = "recording_mode";
public static final String SETTING_RECORDING_MODE_VIDEO = "'video'";
public static final String SETTING_RECORDING_MODE_AUDIO = "'audio'";
public static final String SETTING_RECORDING_MODE_PICTURE = "'picture'";
public static final String SETTING_RECORDING_MODE_NONE = "'none'";
public static final String SETTING_RECORDING_MODE_ALLOWED = SETTING_RECORDING_MODE_VIDEO+","+SETTING_RECORDING_MODE_AUDIO+","+SETTING_RECORDING_MODE_PICTURE+","+SETTING_RECORDING_MODE_NONE;
public static final String SETTING_RECORDING_MODE_DEFAULT = SETTING_RECORDING_MODE_NONE;

public static final String SETTING_PREVIEW_ENABLED = "preview_enabled";
public static final String SETTING_PREVIEW_ENABLED_ALLOWED = TRUE+","+FALSE;
public static final String SETTING_PREVIEW_ENABLED_DEFAULT = FALSE;

public static final String SETTING_PICTURE_RESOLUTION_X = "picture_resolution_x";
public static final String SETTING_PICTURE_RESOLUTION_X_DEFAULT = "'-1'";

public static final String SETTING_PICTURE_RESOLUTION_Y = "picture_resolution_y";
public static final String SETTING_PICTURE_RESOLUTION_Y_DEFAULT = "'-1'";

public static final String SETTING_VIDEO_RESOLUTION_X = "video_resolution_x";
public static final String SETTING_VIDEO_RESOLUTION_X_DEFAULT = "'320'";

public static final String SETTING_VIDEO_RESOLUTION_Y = "video_resolution_y";
public static final String SETTING_VIDEO_RESOLUTION_Y_DEFAULT = "'240'";

public static final String SETTING_VIDEO_FPS = "video_fps";
public static final String SETTING_VIDEO_FPS_DEFAULT = "'15'";

public static final String SETTING_AUDIO_BITRATE_KBPS = "audio_bitrate";
public static final String SETTING_AUDIO_BITRATE_KBPS_DEFAULT = "'96'";

public static final String SETTING_STORE_TO_SD = "sd_enabled";
public static final String SETTING_STORE_TO_SD_ALLOWED = TRUE+","+FALSE;
public static final String SETTING_STORE_TO_SD_DEFAULT = TRUE;

public static final String SETTING_STORAGE_LIMIT_MB = "storage_limit";
public static final String SETTING_STORAGE_LIMIT_MB_DEFAULT = "'-1'";

public static final String SETTING_CLIP_LENGTH_SECONDS = "clip_length";
public static final String SETTING_CLIP_LENGTH_SECONDS_DEFAULT = "'300'";

Does anyone see what could be going on? I'm stumped. Thanks in advance.

有谁看到可能会发生什么?我很难过。提前致谢。

2 个解决方案

#1

It seems that the android put(string,string) method must already append quotes around your value string for you... as soon as I took the manual quotes I had been entering around my value strings out (but kept them in the "ALLOWED") strings I was passing to CHECK, the problem was solved.

似乎android put(字符串,字符串)方法必须已经为你的值字符串附加引号...一旦我拿出手动引号,我就一直在输入我的值字符串(但保留在“允许”中“)我传递给CHECK的字符串,问题解决了。

#2

Have you tried escaping your single quotes? e.g.

你试过逃避单引号吗?例如

public static final String SETTING_SERVER_ADDRESS_DEFAULT = "\'0.0.0.0\'";

If that doesn't fix it, I would break it all down until you only have a single column, and get that to work. Then add each column one at a time so you can figure out which one(s) are causing the problem.

如果这没有解决它,我会打破它,直到你只有一个列,并让它工作。然后一次添加一列,以便找出导致问题的列。