Labels:text | screenshot | font | rectangle | line | parallel | handwriting 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)