問題文
A retailer has three separate data flows. A one-time migration moves twelve million rows from a legacy system. An ongoing hourly feed carries a few hundred rows from a web shop. Once a week a business analyst prepares a file of about five hundred corrected rows by hand. Which assignment of tools fits these three flows?
選択肢
- Row-by-row synchronous calls for all three flows, because sending one record per request keeps every error attributable to a single row and therefore produces the highest possible quality at load time regardless of the number of rows involved.
- The bulk framework for all three flows, so that one mechanism covers everything, and the analyst's file is submitted through it too.
- The desktop loader for all three flows, scheduled from the command line for the migration and for the hourly feed as well, with the analyst using the same tool interactively for the weekly file she prepares.
- The bulk framework for the one-time migration, bulkified synchronous calls for the hourly feed, and the desktop loader for the weekly file the analyst prepares.