Set the UNDO_RETENTION parameter to 900 or more.
Create an initial undo segment in the undo tablespace.
Enable the retention guarantee for the undo tablespace.
Set the UNDO_TABLESPACE parameter to UNDO_TBS1.
Set the UNDO_MANAGEMENT initialization parameter to AUTO.
第1题:
Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace()
第2题:
You executed the following query: SELECT operation, undo_sql, table_name FROM flashback_transaction_query; Which statement is correct regarding the query output?()
第3题:
Your database instance is running with full workload after database creation. You have decided to useafixed-sizeundo tablespace. You want to use the Undo Advisor to estimate the capacity of the undotablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace()
第4题:
You work as a database administrator for Certkiller .com. You want to create your database with the automatic undo management feature enable.Which two tasks must you perform to achieve this?()
第5题:
You executed the following query: SELECT operation, undo_sql, table_name FROM flashback_transaction_query; Which statement is correct regarding the query output?()
第6题:
Users in your PROD database complain about the slow response of the transactions. While investigating the reason, you find that the transactions are waiting for the undo segments to be available, and undo retention has been set to zero. What would you do to overcome this problem?()
第7题:
You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query?()
第8题:
You work as a database administrator for Supportcenter.cn. You want to administer your database servers, which are running on different host machines, using the Web-enabled grid control interface. You have configured the agent on the host machines. You have started the Oracle Database 10g Grid Control utility on your machine. Which two additional components would you configure to achieve this objective?()
第9题:
You can use Oracle Flashback to look at past activity in your database. What are two other characteristics of Oracle Flashback?()
第10题:
You are working as a DBA on the decision support system. There is a business requirement to track and store all transactions for at least three years for a few tables in the database. Automatic undo management is enabled in the database. Which configuration should you use to accomplish this task?()