Question: EXERCISE 9-3 Work with Transactions and Flashback Query In this exercise, youll demonstrate the manner in which undo data is used to provide transaction isolation

EXERCISE 9-3

Work with Transactions and Flashback Query

In this exercise, youll demonstrate the manner in which undo data is used to provide transaction isolation and rollback as well as to implement flashback query. Use the REGIONS table in the HR demonstration schema. Here are the steps to follow:

1. Connect to the HR schema with two sessions, concurrently. These can be two SQL*Plus sessions, two SQL Developer sessions, or one of each. This table lists the steps to follow in each session:

BOOK: OCA Oracle installation 12c and administration page 307

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