A number of applications issue the following SQL statement:SELECT d.deptno, e.empno, e.salary FROM department d INNER JOIN employee e ON d.deptno = e.deptnoA database administrator wishes to store this query within the database. Which of the following database objects can be used to accomplish this?（） Alias。 View。 Schema。 Trigger。
Examine the following command used to perform incremental level 0 backup: RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE; To enable the block change tracking, after the incremental level 0 backup you issued the following command: SQL> ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE '/mydir/ rman_change_track.f'; To perform incremental level 1 cumulative backup, you issued the following command: RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which two statements are true in the above situation?（） The block change tracking data will be used only from the next incremental 0 backup.。 The incremental backup will use change tracking data for accomplishing the backup.。 The incremental backup will not use change tracking data for accomplishing the backup.。 The block track file will scan all the blocks and create bitmap for all the blocks backed up in the level 0 backup.。
A customer has 6.5 TB with 146 GB 15k disk drives on an IBM System Storage DS8700. They want to add 15 TB using 300 GB 15k disk drives. The customer is concerned about performance and wants to know if the DS8700 has the performance capability. What is the appropriate way to model the performance（） Disk Magic。 Capacity Magic。 test the workload at an IBM Benchmark Center。 test the solution with IBM Storage Performance Center。
Which command will remove the ‘stale’ status from a logical volume?（） syncvg -p。 syncvg -l。 synclv -p。 synclv -l。
应用系统促进发展需要（） 规范对硬件的要求。 了解桌面发展趋势。 预留系统接口满足增长。 提前投入。
某建筑公司安全管理的第一责任人是（）。
