您有一個從 Azure 事件中心接收點擊流數據的 Azure 流分析作業。您需要在流分析作業中定義一個查詢。查詢必須滿足以下要求:根據訪問者所在國家/地區計算每個 10 秒窗口內的點擊次數。確保每次點擊不會被計算多次。應如何定義查詢?
A. ELECT Country, Avg(*) AS AverageFROM ClickStream TIMESTAMP BY CreatedAt GROUP BY Country, SlidingWindow(second, 10)
B. ELECT Country, Count(*) AS CountFROM ClickStream TIMESTAMP BY CreatedAt GROUP BY Country, TumblingWindow(second, 10)
C. ELECT Country, Avg(*) AS AverageFROM ClickStream TIMESTAMP BY CreatedAt GROUP BY Country, HoppingWindow(second, 10, 2)
D. ELECT Country, Count(*) AS CountFROM ClickStream TIMESTAMP BY CreatedAt GROUP BY Country, SessionWindow(second, 5, 10)