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Graphics Interchange Format  |  1996-07-01  |  45KB  |  476x387  |  4-bit (16 colors)
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OCR: FIGURE 3: The architecture of a writable snapshot Trigger: Trigger: "after row for each row". Records ROWID and "after row for each row". Records ROWID of type of change (insert, update, or delete). changed row. Snapshot View [hides ROWID) Master Snapshot Base Table Table {includes ROWID} Refresh Operation Log (ROWID) View of Log (changed and Operation Changed Rows ROWIDs)