You work as a database administrator for Certkiller .com. In the Certkiller PRODUCTION database you have granted RESUMABLE system privilege to the CONNECT role.Resumablespace operation has been enabled for all user session. You want users NOT to be aware of any kind of space-related problems while performing transactions. Instead， you want the problem to be resolved by a database trigger automatically. Which combination of triggering time and event would you use to achieve this objective？（） AFTER CREATE。 AFTER SUSPEND。 BEFORE CREATE。 AFTER TRUNCATE。 BEFORE SUSPEND。 AFTER INSERT OR DELETE OR DELETE。 BEFORE INSERT OR DELETE OR DELETE。
以下关于杆件性质的说法正确的有（）。 杆件的强度越大，则刚度越大。 刚度是指杆件在外力作用下抵抗变形的能力。 提高杆件材料的强度能提高杆件承载力。 压杆材料的强度越大，则其临界力越大。 压杆的临界力与作用荷载的大小无关。
Your database operates in ARCHIVELOGmode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived and it contained information from 10：35 a.m. onwards. The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery： RMAN> RUN { 2> SET UNTIL SEQUENCE 230 THREAD 1； 3> ALTER DATABASE MOUNT； 4> RESTORE DATABASE； 5> RECOVER DATABASE； 6> ALTER DATABASE OPEN RESETLOGS； 7> }； With reference to this scenario， which statement is true？（） RMAN recovers up to log sequence 230， but not including 230.。 RMAN returns an error because the log sequence number mentioned in the command should be 229.。 RMAN returns an error because the log sequence number mentioned in the command may never be missing.。 RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.。
社会保险费有养老保险费和（）等 A.失业保险费 。 B.医疗保险费 。 C.生育保险费 。 D.工伤保险费。
根据《反家庭暴力法》的规定，下列关于告诫书的说法不正确的是（）。 家庭暴力情节显著轻微，依法不给予治安管理处罚的，由公安机关对加害人出具告诫书。 告诫书应当包括加害人的身份信息、家庭暴力的事实陈述、禁止加害人实施家庭暴力等内容。 公安机关应当将告诫书送交加害人、受害人，并通知居民委员会、村民委员会。 家庭暴力情节较轻，依法不给予治安管理处罚的，由公安机关对加害人出具告诫书。
When the doSomething method is called， after which line does the Object created in line 5 become available for garbage collection？（）
