Question

我正在创建一个可在模拟器上运行但不在设备上运行的表。我收到此错误消息：

Failure 1 (near "(": syntax error) on 0x2d69a8 when preparing 'CREATE TABLE request(requestidINTEGER PRIMARY KEY,longitudefromDECIMAL(10,5),lattitudefromDECIMAL(10,5),phoneINTEGER)

我正在创建这样的表：

 String CREATE_REQUEST_TABLE= "CREATE TABLE " + TABLE_REQUEST + "(" 
                    + KEY_REQUESTID + "INTEGER PRIMARY KEY," 
                    + KEY_LONGITUDEFROM + "DECIMAL(10,5)," 
                    + KEY_LATTITUDEFROM + "DECIMAL(10,5)," 
                    + KEY_TO + "TEXT," 
                    + KEY_DEPARTURETIME + "TIME," 
                    + KEY_ARRIVALTIME + "TIME," 
                    + KEY_DESCRIPTION + "TEXT," 
                    + KEY_PHONE + "INTEGER" + ")"; 
            db.execSQL(CREATE_REQUEST_TABLE);

Answer 1

您的请求中没有空格。在键之前和之后添加空格：

String CREATE_REQUEST_TABLE= "CREATE TABLE " + TABLE_REQUEST + " (" 
                + KEY_REQUESTID + " INTEGER PRIMARY KEY, " 
                + KEY_LONGITUDEFROM + " DECIMAL(10,5), " 
                + KEY_LATTITUDEFROM + " DECIMAL(10,5), " 
                + KEY_TO + " TEXT, " 
                + KEY_DEPARTURETIME + " TIME, " 
                + KEY_ARRIVALTIME + " TIME, " 
                + KEY_DESCRIPTION + " TEXT, " 
                + KEY_PHONE + " INTEGER" + ")";

Answer 2

好吧，正如您在错误消息中看到的那样，KEY_REQUESTID + "INTEGER PRIMARY KEY,"变为requestidINTEGER PRIMARY而不是requestid INTEGER PRIMARY。基本上，列名和列类型之间没有空格，这使得它们（作为SQLite）看起来像一个标记。

Answer 3

尝试使用您的ID和＆＃34; INTEGER PRIMARY KEY之间的空格，＆＃34;

像;

    KEY_REQUESTID + " INTEGER PRIMARY KEY,"

android中的数据库创建

3 个答案: