Which three statements are true about the working of system privileges in a multitenant control database(CDB) that has pluggable databases (PDBs)?（） System privileges apply only to the PDB in which they are used.。 Local users cannot use local system privileges on the schema of a common user.。 The granter of system privileges must possess the set container privilege.。 Common users connected to a PDB can exercise privileges across other PDBs.。 System privileges with the with grant option container all clause must be granted to a common user before the common user can grant privileges to other users.。
推进水利工程建设项目信息公开和诚信体系建设的目的要求不包括（） 解决市场准入和退出机制不健全的问题。 解决水利工程建设信息公开不规范的问题。 完善水利工程建设制度。 解决水。
The human resources department requested an employee report to high light those employees who are due for 30 days 6 months and 1 year evaluation. The higher_data field should display blue text for 30 days employee, a red text for 6 months employees and a green text for one year employees. You created a format trigger on the higher_data field to handle this task. What will happen if the format trigger returns a false value? （） The report execution will be halted. 。 The higher_data file will not be displayed. 。 The record will not be displayed. 。 Nothing will happen.。
From the V$SESSION_LONGOPS view， you find that some of the database users have long-running queries that consume a lot of CPU time. This causes performance problems for other users in the database， who have much shorter queries. You would like to make sure that the users with large queries do not use all the CPU time， but you still do not want to terminate them with an error message. Which method would you follow to achieve this？（） set the CPU time per call in the users profile。 set the CPU time per session in the users profiles。 set the TIMED_STATISTICS parameter to TRUE in the parameter file。 set the CPU levels for the users’ group using Resource Manager。
电子商务法与其他相关法律的实施上，不可偏废，在本国电子商务活动与国际电子商务活动的法律待遇上，应一视同仁，这具体体现了电子商务法的（） 实施中立。 媒介中立。 技术中立。 同等保护。
You are working on a 24x7 （available 24 hours per day， 7 days per week） production database. An operating system （OS） user deletes the alert log file accidentally. Which statement in this scenario is true？（）
