Which two statements are true about the Application Grid ？（） Application Grid computing brings key industry-leading technologies like MS IIS and Grade WebLogic Server together.。 Application Grid computing promotes well architectured sharing of resources.。 Application Grid computing based on Oracle’s RAC technology.。 Application Grid computing results in more predictable behavior through better instrumentation and more optimal allocation of resources.。
简要叙述机器设备评估的特点。
You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance. Which advisory component would you refer to， in order to determine the appropriate indexes？（） Memory Advisor。 Segment Advisor。 SQL Access Advisor。 Automatic Workload Repository （AWR）。 Automatic Database Diagnostic Monitor （ADDM）。
我国古代天文历法的突出成就实质上反映了（）。 古代农业生产的发展。 古人对天象的好奇。 统治者对改造自然的重视。 古代封建迷信盛行。
中国书法所负载的丰富文化内涵，体现着中国人特有的（）和（）。
You enabled Flashback Data Archive on the INVENTORY table. Which DDL operation is supported on the table after enabling Flashback Data Archive？（）
