ขอความช่วยเหลือกเกี่ยวกับ code java คะ

จาก code นี้ เมื่อ export data จาก database แล้ว รายละเอียดของ CSV file ที่ได้จากการ Export จาก Database ไม่มี Headerมาด้วยคะ

อยากสอบถามพี่ๆ  ว่าต้องใส่ code อย่างไร Headerถึงจะมาด้วยคะ  ....ขอบพระคุณมากนะคะ

    Cursor cursor = null;
        String sql = "select * from '" + table + "' where " + condition;
        try {
            cursor = db.rawQuery(sql,null);
        } catch (Exception e){
            //
        }
        if ( cursor == null ){
            db.close();
            return "SQL query error:["+sql+"]";
        }
        
        //
        // Read data and convert to CSV
        //
        StringBuilder csvData = new StringBuilder(sql+"\n");
        cursor.moveToFirst();
        final int column = cursor.getColumnCount();
        if ( cursor.getCount() > 0 ){
            do {
                for ( int c=0; c<column; c++ ){
                    String val = cursor.getString(c);
                    if ( c != 0 ){
                        csvData.append(",");
                    }
                    csvData.append(val);
                }
                csvData.append("\n");
            } while (cursor.moveToNext());
        }
        cursor.close();
        db.close();
        
        //
        // Write CSV data to SD under "csv" folder.
        //
        final String folderName =
                Environment.getExternalStorageDirectory().getAbsolutePath() +
                CSVFOLDER;
        File csvfile = new File(folderName);
        if ( csvfile.exists() == false ) {
            csvfile.mkdir();
        }
        
        OutputStream outputStream;
        final String csvFileName =
                Environment.getExternalStorageDirectory().getAbsolutePath() +
                CSVFOLDER + "/" + csvName;
        try {
            csvfile = new File(csvFileName);
            outputStream = new FileOutputStream(csvfile);
        } catch(Exception e) {
            return e.getMessage();
        }

        String cvsDataString = csvData.toString();
        try {
            outputStream.write(cvsDataString.getBytes("TIS620"));
            outputStream.close();
        } catch(Exception e){
            return e.getMessage();
        }
        
        return cvsDataString;
    }