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IT Certification
Tag Archives: 1Z0-515
11g Data Warehousing 1Z0-515課程詳述
準備參加1Z0-515考試的考生應該學習Oracle 11g Data Warehousing及相關的Oracle資料庫分區架構基礎知識。考生複習的好處的平行作業，以減少回應時間為資料密集型操作。考生瞭解提取，轉換和載入資料階段（ETL）到Oracle資料庫。考生學習使用Oracle物化視圖基礎知識的好處可以提高資料倉庫性能。考生將學習如何在一個較高水準的查詢重寫，可以改善查詢的性能。