Question

我的服务中有以下功能：

private void saveToDB(String sender, String message, String time) {
    DBHandler db = new DBHandler(getApplicationContext(), sender);
    db.insertOrCreateTable(sender, message, time);
}

这是我的数据库处理程序类：

public class DBHandler extends SQLiteOpenHelper {
    // All Static variables

    private static final int DATABASE_VERSION = 1;
    private static final String DATABASE_NAME = "Mo";
    private static String mSender;

    private static final String KEY_ID = "id";
    private static final String KEY_SENDER ="sender";
    private static final String KEY_MSG = "msg";
    private static final String KEY_TIME ="time";

    //constructor
    public DBHandler(Context context, String sender) {
        //higher db version when user needs to create new table
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
        SQLiteDatabase db = this.getWritableDatabase();
        mSender = sender;
    }

    // Contacts table name
    private static final String TABLE_MESSAGES = mSender;

    private String CREATE_MESSAGES_TABLE = "Create Table " + TABLE_MESSAGES + 
              "("   
            + KEY_ID + " INTEGER PRIMARY KEY,"
            + KEY_SENDER + " TEXT, "
            + KEY_MSG + " TEXT, "
            + KEY_TIME + " TEXT" + ")";



    // Creating Tables
    @Override 
    public void onCreate(SQLiteDatabase db) {
        db.execSQL(CREATE_MESSAGES_TABLE);
    }

    // Upgrading database
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // Drop older table if exists
        db.execSQL("DROP TABLE IF EXISTS " + TABLE_MESSAGES);
        onCreate(db);
    }


    public void insertOrCreateTable(String s,String m,String t) {
        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(KEY_SENDER, s); // Message Sender
        values.put(KEY_MSG, m); // Message Message
        values.put(KEY_TIME, t); // Message Time

        // Inserting Row
        db.insert(mSender, null, values);
        db.close();
    }
}

现在，我尝试动态创建表，但它总是返回错误：

    E/SQLiteLog: (1) near "65": syntax error
    03-09 12:03:13.813 20828-21609/com.example.asus.service E/SQLiteDatabase: Error inserting sender=65 time=12:03 msg=C
                                                                              android.database.sqlite.SQLiteException: near "65": syntax error (

code 1): , while compiling: INSERT INTO 65(sender,time,msg) VALUES (?,?,?)

任何想法或建议？我也以不同的方式将它发布在一个帖子中，所以请随意查看它（可能有助于你更好地理解我的问题）这是链接：How do I dynamically add tables in android sqlite?

我做错了什么？

Answer 1

如果您的表名为65，则应使用' '进行插入。而不是：

INSERT INTO 65(sender,time,msg) VALUES (?,?,?)

尝试：

INSERT INTO '65'(sender,time,msg) VALUES (?,?,?)

尝试在android sqlite中动态创建的表中插入值时出错

1 个答案: