我在Android应用程序中遇到了数据库问题。下面是一些代码:Android SQLite异常没有这样的列
private static final String QUESTIONS_TABLE = "questions";
/* questions keys */
public static final String KEY_ROWID = "_id";
public static final String KEY_TYPE = "type";
public static final String KEY_CONTENT = "content";
public static final String KEY_A = "answerA";
public static final String KEY_B = "answerB";
public static final String KEY_C = "answerC";
public static final String KEY_D = "answerD";
private static final String QUESTIONS_TABLE_CREATE =
"create table "+ QUESTIONS_TABLE +" (" + KEY_ROWID + " integer primary key autoincrement, "
+ KEY_TYPE + "integer not null,"
+ KEY_CONTENT + " text not null, "
+ KEY_A + " text, "
+ KEY_B + "text, "
+ KEY_C + "text, "
+ KEY_D + "text); ";
//--- QUESTIONS SECTION ---
//--- inserts a close question ---
public long insertCloseQuestion(int type, String content, String[] answers) {
ContentValues initValues = new ContentValues();
initValues.put(KEY_TYPE, type);
initValues.put(KEY_CONTENT, content);
if(answers != null && answers.length > 0) {
initValues.put(KEY_A, answers[0]);
initValues.put(KEY_B, answers[1]);
initValues.put(KEY_C, answers[2]);
initValues.put(KEY_D, answers[3]);
}
Log.d("VM", initValues.toString());
return db.insertOrThrow(QUESTIONS_TABLE, null, initValues);
}
当我打电话insertCloseQuestion方法,安卓返回一个例外:
android.database.sqlite.SQLiteException: table questions has no column named answerD: , while compiling: INSERT INTO questions(answerD, content, answerB, answerC, type, answerA) VALUES(?, ?, ?, ?, ?, ?);
你有什么想法如何解决呢?我知道这里有几个主题,但没有任何解决方案对我有帮助。
那是时机:) – KarlKarlsom 2012-03-18 14:16:07
它的工作原理!非常感谢:)(我还错过了KEY_TYPE之后的空间)。当我读到你的答案时,这很明显。但是,当我在30分钟后出演这段代码时,我找不到任何错误:D – Kraxi 2012-03-18 14:19:32