問題文
The depot uploads one file every hour holding thousands of comma separated position lines, and the storage side wants them written out in a binary columnar form. Which approach converts the file in one pass?
選択肢
- One component walks the rows with the manual reader and hands them to the writer, and reaching the same shape through the mapped operations would add one step per field in this configuration.
- One component walks the rows with the typed reader and hands them to the writer, and reaching the same shape through the mapped operations would add one step per field in this configuration.
- One component walks the rows with the typed reader and hands them to the writer, and reaching the same shape through the character operations would add one step per field in this configuration.
- One component walks the rows with the manual reader and hands them to the writer, and reaching the same shape through the character operations would add one step per field in this configuration.