[单选]

A customer’s SAN environment has undergone significant growth over the past two years. They have also suffered a high turnover rate with administrative personnel. The customer has asked a  
storage specialist for help in documenting and understanding their changing SAN environment. The ability to make configuration changes to devices would be a plus. 
Which tool should the storage specialist suggest（）

The EMP table exists in your schema. You want to execute the following query: SELECT ename, sal FROM emp AS OF TIMESTAMP (SYSTIMESTAMP - INTERVAL '6' MINUTE) WHERE ename = 'ALLEN'; What are the minimum requirements for the statement to execute successfully? （） ARCHIVELOG mode must be enabled。 Row Movement must be enabled for the table。 FLASHBACK must be set to ON for the database。 The UNDO_MANAGEMENT parameter must be set to AUTO。 The UNDO_RETENTION parameter must be set appropriately。 货车厂、段修时，制动梁滚子轴质量保证期限为（）。 6个月。 1年。 1个段辅期。 1个段修期。 An Alias can be an alternate name for which DB2 object?（） Sequence。 Trigger。 Schema。 View。 怎样预测中国餐饮业的发展趋势？ 货车厂、段修时，制动梁各拉杆及链质量保证期限为（）。 6个月。 1年。 1个段辅期。 1个段修期。

A customer’s SAN environment has undergone significant growth over the past two years. They have also suffered a high turnover rate with administrative personnel. The customer has asked a  
storage specialist for help in documenting and understanding their changing SAN environment. The ability to make configuration changes to devices would be a plus. 
Which tool should the storage specialist suggest（）