Your database is started by using the server parameter file （SPFILE）. You issued this command to change the value of the LOG_BUFFER initialization parameter： ALTER SYSTEM SET LOG_BUFFER=24M SCOPE=BOTH; What would be the outcome of this command？（） The command would return an error because LOG_BUFFER is a static parameter.。 The parameter value would be changed and it would come into effect immediately.。 You need to restart the database so that parameter changes can come into effect.。 The command would succeed only if initialization parameter LOG_ARCHIVE_MAX_PROCESS is set to value 2.。
偏航系统作用是什么？
You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table， you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that： a） No other user data in the database is affected. b） The operation takes the minimum possible time. Which option would you choose？（） use the ROLLBACK command with SCN 663571。 perform Flashback Transaction Query with SCN 663571。 execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571。 execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571。
课外活动的特点包括（） 自愿性。 基础性。 广泛性。 自主性。 多样性。
实施性施工进度计划要反映各施工作业相应的（）的安排。 总工期。 年度内。 日历天。 季度内。
Given:
What is the result?（）
