我正在使用我的sqldatabase,但我無法繼續前進,因爲我的程序給了我一個錯誤信息,即使該列在「KEY_NAME」下的代碼頂部明確定義,也沒有這樣的列。如果任何人都可以提供幫助我還是需要我再發布代碼,請告訴我謝謝! 我只發佈了我的數據庫。SQL數據庫列錯誤或不存在?
** * ****最近logcat的信息 1月3日至一十四日:24:54.285:E /數據庫(26073):android.database.sqlite.SQLiteException:表PeopleTable沒有列在編譯時命名爲persons_name:,INSERT INTO PeopleTable(persons_hotness,persons_name)VALUES(?,?);
public class HotOrNot {
public static final String KEY_ROWID = "_id";
public static final String KEY_NAME = "persons_name";
public static final String KEY_HOTNESS = "persons_hotness";
private static final String DATABASE_NAME = "HotOrNotDB";
private static final String DATABASE_TABLE = "PeopleTable";
private static final int DATABASE_VERSION = 1;
private DbHelper ourHelper;
private final Context ourContext;
private SQLiteDatabase ourDatabase;
private static class DbHelper extends SQLiteOpenHelper {
public DbHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL("CREATE TABLE " + DATABASE_TABLE + " (" + KEY_ROWID
+ " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_NAME
+ " TEXT NOT NULL, " + KEY_HOTNESS + " TEXT NOT NULL);");
// String sql = String.format("create table %s "
// + "(%s int primary key, %s int, %s text, %s text)",
// DATABASE_TABLE, KEY_ROWID, KEY_NAME, KEY_HOTNESS);
// db.execSQL(sql);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE);
onCreate(db);
}
}
public HotOrNot(Context c) {
ourContext = c;
}
public HotOrNot open() throws SQLException {
ourHelper = new DbHelper(ourContext);
ourDatabase = ourHelper.getWritableDatabase();
return this;
}
public void close() {
ourHelper.close();
}
public long createEntry(String name, String hotness) {
// TODO Auto-generated method stub
ContentValues cv = new ContentValues();
cv.put(KEY_NAME, name);
cv.put(KEY_HOTNESS, hotness);
return ourDatabase.insert(DATABASE_TABLE, null, cv);
}
public String getData() {
// TODO Auto-generated method stub
String[] columns = new String[] { KEY_ROWID, KEY_NAME, KEY_HOTNESS };
Cursor c = ourDatabase.query(DATABASE_TABLE, columns, null, null, null,
null, null);
String result = "";
int iRow = c.getColumnIndex(KEY_ROWID);
int iName = c.getColumnIndex(KEY_NAME);
int iHotness = c.getColumnIndex(KEY_HOTNESS);
for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
result = result + c.getString(iRow) + " " + c.getString(iName)
+ " " + c.getString(iHotness) + "\n";
}
return result;
}
}
仍在尋找一個有效的答案:\ – 2012-04-01 19:08:37