插入值我是新android開發,我有一個Android的數據庫表下面的代碼SQLiteConstraintException上表
公共類SoftCopyDatabase擴展SQLiteOpenHelper {
private static final String DATABASE_NAME = "SoftCopy.db";
private static final int DATABASE_VERSION = 1;
public SoftCopyDatabase(Context ctx) {
super(ctx, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + TABLE_NAME + " (" + _ID
+ " INTEGER PRIMARY KEY AUTOINCREMENT, " + SUBJECT
+ " TEXT NOT NULL," + TOPIC + " TEXT NOT NULL, "
+ LECTURENUMBER + " TEXT NOT NULL, " + PAGENUMBER
+ " TEXT NOT NULL, " + DATE + " TEXT NOT NULL, " + _DATA
+ " TEXT NOT NULL);");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
onCreate(db);
}}
我想加入到這個表使用該方法ADDINFO(),它是如下:
private void addInfo(){
ContentValues values = new ContentValues();
values.put(SUBJECT, SaveData._subject);
values.put(TOPIC, SaveData._topic);
values.put(LECTURENUMBER, SaveData._lecturenumber);
values.put(PAGENUMBER, Integer.toString(PAGE_NUMBER));
values.put(DATE, SaveData._date);
values.put(_DATA, SaveData.FILE_NAME + ".png");
softCopyDB.getWritableDatabase().insertOrThrow(TABLE_NAME, null, values);
}
但是,當我增加PAGE_NUMBER的值(PAGE_NUMBER是整數),同時保持人l其他條目相同並調用addInfo(),我在 處收到錯誤softCopyDB.getWritableDatabase()。insertOrThrow(TABLE_NAME,null,values);
其是如下
08-21 18:16:11.216:ERROR/AndroidRuntime(329):android.database.sqlite.SQLiteConstraintException:錯誤代碼19:致約束失敗 08-21 18 :16:11.216:錯誤/ AndroidRuntime(329):在android.database.sqlite.SQLiteStatement.native_execute(本機方法) 08 - 21 18:16:11.216:錯誤/ AndroidRuntime(329):在android.database.sqlite。 SQLiteStatement.execute(SQLiteStatement.java:55) 08-21 18:16:11.216:錯誤/ AndroidRuntime(329):at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1549) 08-21 18: 16:11.216:錯誤/ AndroidRuntime(329):在android.database.sqlite.SQLiteDat abase.insertOrThrow(SQLiteDatabase.java:1432) 08-21 18:16:11.216:ERROR/AndroidRuntime(329):在neduet.telecom.softcopy.surface.LectureNoting.addInfo(LectureNoting.java:161)
請幫我排序。
請詳細說明您的答案。 –
所有列都標記爲NOT NULL,因此請檢查'values'對象中的所有對象是否都爲空。 – dmon