Examine the following RMAN command： BACKUP DATABASE TAG TESTDB KEEP UNTIL ’SYSDATE+1’ RESTORE POINT TESTDB06； Which two statements are true regarding the backup taken by using the above RMAN command？（） Only data files and the control file are backed up.。 Archived redo logs are backed up only if the database is open during the backup.。 The backup is deleted after one day，regardless of the default retention policy settings. 。 The backup becomes obsolete after one day，regardless of the default retention policy settings.。
收益法必须具备的前提条件有哪些？
Management has asked you to calculate the value 12*salary* commission_pct for all the employees in the EMP table. The EMP table contains these columns: Which statement ensures that a value is displayed in the calculated columns for all employees?（） SELECT last_name, 12*salary* commission_pct FROM emp;。 SELECT last_name, 12*salary* (commission_pct,0) FROM emp;。 SELECT last_name, 12*salary*(nvl(commission_pct,0)) FROM emp;。 SELECT last_name, 12*salary*(decode(commission_pct,0)) FROM em。
育人为本。
十九世纪下半叶，中国知识分子接受西学经历了三个主要的阶段，它们是：首先表现出从（）方面接纳西学，即洋务运动；失败后，又开始从（）方面接受西学，即戊戌变法和孙中山领导的资产阶级革命；失败之后，才转到（）上，于是掀起了狂飙突进式的“五·四运动”。
Your boss at Certkiller .com wants you to clarify Oracle 10g. Which statement is true about the analysis of the Automatic Database Diagnostic Monitor （ADDM）？（）
