READ Free Dumps For Oracle- 1z0-020

Question ID 7738	What can you see when querying V$LOGMNR_CONTENTS?
Option A	The SQL statement run and the old image.
Option B	The SQL statement run, and the new image.
Option C	Only the redo generated by the current schema.
Option D	The SQL statement run, and the relevant undo SQL statement.
Option E	The old image and the new image of the row that was modified.
Correct Answer	E

Explanation Explanation: The V$LOGMNR_CONTENTS table includes multiple sets of place holder columns. Each place holder column set contains a name column, a redo value column, and an undo value column.

Question ID 7739	What happens during a complete refresh of a materialized view?
Option A	The materialized view is dropped and recreated.
Option B	Changes in the materialized view are applied to the underlying table.
Option C	Changes captured in the materialized view log are applied to the materialized view.
Option D	The materialized view is truncated or deleted and repopulated by re-executing the materialized view query.
Correct Answer	D

Explanation

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