0
所以我的SQLite
INSERT INTO
功能是以错误的顺序插入数据,即使我已经把contentValues
以正确的顺序。SQLite Android没有插入数据
这是我的课:
public class UserInfo extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 2;
private static final String DB_TABLE_NAME = "usersData";
private static final String USERNAME = "username";
private static final String DETAILS = "details";
public static final String DATABASE_NAME = "users.db";
private static final String DICTIONARY_TABLE_CREATE =
"CREATE TABLE " + DB_TABLE_NAME + " (" +
USERNAME + " TEXT," + DB_ONE + " TEXT" + ")";
public ReminderDB(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
Log.d("Database operations", "Database created");
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(DICTIONARY_TABLE_CREATE);
Log.d("Database operations", "Table created");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + DB_TABLE_NAME);
onCreate(db);
}
public void addReminder(String username, String reminders){
SQLiteDatabase sqLiteDatabase = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(USERNAME, username);
contentValues.put(DETAILS, details);
sqLiteDatabase.insert(DB_TABLE_NAME, null, contentValues);
}
}
LogCat
错误堆栈:
android.database.sqlite.SQLiteException: table userData has no column named username (code 1): , while compiling: INSERT INTO userData(details,username) VALUES (?,?)
请参阅本教程:http://www.androidhive.info/2011/11/android-sqlite-database-tutorial/ –
我建议你开始使用'greenDAO'忘记关于手动处理'SQL'。 (我知道它是有问题的) – giannisf
您的第二列名称是由创建表查询中的变量'DB_ONE'创建的。我在班上看不到那个变量。它的价值是什么? –