Within the application MY_APP the following PREVIOUS VALUE expression references the sequence MY_SEQ: PREVIOUS VALUE FOR my_seq After which of the following events will the most recently generated value of MY_SEQ persist so that it can be returned to the active MY_APP application?()
A.After a ROLLBACK is issued
B.After the sequence is altered
C.After the sequence is dropped
D.After the current session ends
第1题:
在switch(expression)语句中,expression的数据类型不能是( )。
A.double
B.char
C.byte
D.short
第2题:
在switch(expression)语句中,expression的数据类型不能是( )。
A.double
B.char
C.byte
D.short
第3题:
for重复结构处理计数器控制循环的所有细节。for结构的一般格式如下: for(expression1, expression2, expression3) statement 其中expression1初始化循环控制变量,expression2是循环条件,expression3递增控制变量。
第4题:
Aresourcegroup,MY_APP,hasthefollowingconfiguration:ResourceGroupNameMY_APPParticipatingNodeName(s)AlphaBetaGammaStartupPolicyOnlineOnHomeNodeOnlyFalloverPolicyFalloverToNextPriorityNodeInTheListFallbackPolicyFallbackToHigherPriorityNodeInTheListMY_APPiscurrentlyrunningonnodeBeta.MY_APPisthenmovedtonodeGammausingC-SPOC.NodesAlphaandBetaareshutdownandrestarted.NodeAlphastabilizesapprox60secondsbeforenodeBeta.Whathappenstotheresourcegroup,MY_APP,whennodesAlphaandBetaarerestarted?()
A.ItmovestoBeta
B.ItstaysonGamma
C.ItmovestoAlpha
D.ItmovestoAlpha,thentoBeta
第5题:
【单选题】MySQL中添加外键约束的语句是()
A.ALTER TABLE...ADD CONSTRAINT...FOREIGN KEY...REFERENCES...
B.ADD CONSTRAINT...FOREIGN KEY...REFERENCES...
C.ALTER TABLE...ADD CONSTRAINT...PRIMARY KEY...REFERENCES...
D.ADD CONSTRAINT...PRIMARY KEY...REFERENCES...
第6题:
下面哪项是错误的设置Bean属性值的方法()
A.<jsp:setPropertyname="beanInstanceName" property= "*" />
B.<jsp:setPropertyname="beanInstanceName" property="propertyName"value="123"/>
C.<jsp:setPropertyname="beanInstanceName" property="propertyName"param="parameterName" />
D.<jsp:setPropertyname="beanInstanceName" property="*" value="{string |<%= expression %>}"/>