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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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