第一次插入行时，它没有任何问题。但是在同一设备上安装应用程序（从eclipse安装而不从设备卸载应用程序）并尝试插入新行之后，它将引发异常
10-1216: 36: 38.405: E/AndroidRuntime(32429): Causedby:android.database.sqlite.SQLiteConstraintException: columnidisnotunique(code19)
10-12 16:36:38.405: E/AndroidRuntime(32429): Caused by: android.database.sqlite.SQLiteConstraintException: column id is not unique (code 19)
10-12 16:36:38.405: E/AndroidRuntime(32429): at android.database.sqlite.SQLiteConnection.nativeExecuteForChangedRowCount(Native Method)
10-12 16:36:38.405: E/AndroidRuntime(32429): at android.database.sqlite.SQLiteConnection.executeForChangedRowCount(SQLiteConnection.java:727)
10-12 16:36:38.405: E/AndroidRuntime(32429): at android.database.sqlite.SQLiteSession.executeForChangedRowCount(SQLiteSession.java:754)
10-12 16:36:38.405: E/AndroidRuntime(32429): at android.database.sqlite.SQLiteStatement.executeUpdateDelete(SQLiteStatement.java:64)
10-12 16:36:38.405: E/AndroidRuntime(32429): at android.database.sqlite.SQLiteDatabase.updateWithOnConflict(SQLiteDatabase.java:1565)
10-12 16:36:38.405: E/AndroidRuntime(32429): at android.database.sqlite.SQLiteDatabase.update(SQLiteDatabase.java:1514)
创建表：
public void onCreate(SQLiteDatabase db) {
String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_USER_DATA + "("
+ KEY_ID + " TEXT PRIMARY KEY," + KEY_TIMESTAMP + " TEXT,"
+ KEY_JSON_DATA + " TEXT" + ")";
db.execSQL(CREATE_CONTACTS_TABLE);
}
插入：
public void addJsonData(JSONDataStore dataStore) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_ID, dataStore.getKey());
values.put(KEY_TIMESTAMP, dataStore.getTimeStamp());
values.put(KEY_JSON_DATA, dataStore.getJsonData());
db.insert(TABLE_USER_DATA, null, values);
}
升级：
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_USER_DATA);
onCreate(db);
}
插入时的异常：
db.insert(TABLE_USER_DATA, null, values);
最佳答案
该错误告诉您正在尝试为定义为ID的列PRIMARY KEY创建具有相同值的两行。为了让sqlite为您创建自动递增ID值，只需删除此行即可。-
values.put(KEY_ID, dataStore.getKey());
并将该列声明为
INTEGER。关于android - android.database.sqlite.SQLiteConstraintException:columnidisnotunique(code19)android.database.sqlite.SQLiteConstraintException，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/19333533/