Materialized View Logs (190)

A materialized view log is a schema object that records changes to a master table’s
data so that a materialized view defined on the master table can be refreshed
incrementally.

Each materialized view log is associated with a single master table. The materialized
view log resides in the same database and schema as its master table.

物化檢視日誌
1. 記錄主表資料變化的方案物件 , 使得定義在主表上的物化檢視能夠增量重新整理
2. 每個物化檢視日誌與一個主表相關 , 與主表位於同一資料庫同一方案

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