What two are the prerequisites for enabling Flashback Database?（） (Choose two) The database must be in ARCHIVELOG mode。 The database must be in MOUNT EXCLUSIVE mode。 The database must be opened in RESTRICTED mode。 The database instance must be started in the NOMOUNT state。 The database instance must have the keep buffer pool defined。
有规则游戏的几个基本因素中，核心因素是（） 游戏的任务。 游戏的玩法。 游戏的规则。 游戏的结果。
A competitor in the IBM Maximo Asset Management (IMAM) domain claims that their product contains pre-built workflows and common tasks that span and integrate across asset applications. What should a solution advisor do when a customer is considering such a solution?（） Dispute the vendor's claims that these pre-built workflows even exist. 。 Inform the organization that workflow is an unimportant component in asset . 。 Inform the organization that all vendors have the same pre-built workflows incorporated in their products. 。 Inform the customer that if current business processes do not exactly match these workflows, customization is required.。
To generate recommendations to improve the performance of a set of SQL queries in an application， you execute the following blocks of code： BEGIN dbms_advisor.create_task（dbms_advisor.sqlaccess_advisor，’TASK1’）； END； / BEGIN dbms_advisor.set_task_parameter（’TASK1’，’ANALYSIS_SCOPE’，’ALL’）； dbms_advisor.set_task_parameter（’TASK1’，’MODE’，’COMPREHENSIVE’）； END； / BEGIN dbms_advisor.execute_task（’TASK1’）； dbms_output.put_line（dbms_advisor.get_task_script（’TASK1’））； END； / The blocks of code execute successfully；however，you do not get the required outcome. What could be the reason？（） A template needs to be associated with the task.。 A workload needs to be associated with the task.。 The partial or complete workload scope needs to be associated with the task.。 The type of structures （indexes， materialized views， or partitions） to be recommended need to be specified for the task.。
在云计算系统中，提供“云端”服务模式是（）公司的云计算服务平台。 IBM。 GOOGLE。 Amaxon。 微软。
Which two statements are true about simple views？（）
