Evaluate the SQL statement DROP TABLE DEPT: Which four statements are true of the SQL statement? （） You cannot roll back this statement.。 All pending transactions are committed.。 All views based on the DEPT table are deleted.。 All indexes based on the DEPT table are dropped.。 All data in the table is deleted, and the table structure is also deleted.。 All data in the table is deleted, but the structure of the table is retained.。 All synonyms based on the DEPT table are deleted.。
《中学教师专业标准》是国家对合格中学教师的基本专业要求。
You work as a database administrator for Supportcenter.cn. You suspect that in one of your applications the customer table is being accessed by some unauthorized users. Which option would you use to monitor the queries being executed on the customer table？（） Monitor thealert.logfile。 Enable server-side SQL tracing for user sessions。 Enable fine-grained auditing for the customer table。 Enable Fine-Grained Access Control （FGAC） for the customer table。 Write a database trigger on the customer table on the SELECT event。
A system is being designed with many LPARs which will be clients of dual VIO Servers. The VIO Servers must be redundant so that, in the event of scheduled maintenance, the clients do not need to be shut down. Which of these strategies could be used to ensure that the client LPARs continue to be able to use the network in the event of a VIO Server being shut down?（） ImplementPowerHA SystemMirror on both VIO servers.。 ConfigureEtherchannel between the client LPARs and the two VIO servers。 Configure Network Interface Backup between the two VIO servers and use each VIO server to access the network.。 Implement Shared Ethernet Adapter failover and have all client partitions access the network through the shared adapters.。
实地观察评价法和间接信息评价法、自我评价法和他人评价法各有什么优缺点？
世界各国普遍采用的小企业界定标准包括（）。
