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更多“Heavy objects and light objects () at the same speed. ”相关问题
  • 第1题:

    ORACLE 10G grant的问题

    今天在学校学习ORACLE 10G实验的时候遇到一个问题。

    SQL> conn scott/tiger

    Connected.

    SQL> create table t1 as select * from dba_objects;

    create table t1 as select * from dba_objects

                                     *

    ERROR at line 1:

    ORA-00942: table or view does not exist

    可是我的同学运行就能通过。我问他,他也说不上来。老师也下班回家了。

    我估计可能是我没授权给 scott,可是我应该赋予scott什么权限才能让这句语句正常执行而不会报错呢?


    table or view does not exist应该是表或视图不存在!!dba_objects这个表没有吧!!你仔细看看是不是!!

  • 第2题:

    YouhaveanExchangeorganizationthatcontainsExchange2000ServerandExchangeServer2003ServicePack2(SP2)servers.YouplantotransitiontheorganizationtoExchangeServer2010.YouneedtopreparetheExchangeorganizationforthedeploymentofExchangeServer2010Mailbox,ClientAccess,andHubTransportservers.Whatshouldyoudofirst()?

    A.InstalltheActiveDirectoryConnector(ADC).

    B.DeleteallRecipientUpdateService(RUS)objects.

    C.DeployanExchangeServer2010EdgeTransportserver.

    D.RemoveallExchange2000Serverserversfromtheorganization.


    参考答案:D

  • 第3题:

    以下那一个选项是查询数据方法:

    A.User.objects.filter(username='wangwu').get(pk=1)

    B.User.objects.filter(id=user_id).update(password='9999')

    C.User.objects.all().delete()

    D.User.objects.get(pk=user_id).delete()


    query()

  • 第4题:

    A user utilizing an alias to update a subset of columns in a table must have UPDATE privileges on which of the following DB2 objects?()

    A.Table

    B.Columns

    C.Table and Alias

    D.Columns and Alias


    参考答案:A

  • 第5题:

    YouhaveanExchangeorganizationthatcontainsanExchangeServer2003SP2.AllserversaremembersofoneAdministrativeGroupandoneRoutingGroup.YouplantotransitiontheorganizationtoExchangeServer2010.YouneedtopreparetheExchangeorganizationforthedeploymentofExchangeServer2010mailbox,ClientAccessandHubTransportsservers.Whatshouldyoudofirst?()

    A.Disablealllinkstateupdates.

    B.CreateaRoutingGroupconnector.

    C.ModifytheActiveDirectoryschema.

    D.DeleteallRecipientUpdateService(RUS)objects.


    参考答案:C

  • 第6题:

    以下那一个选项不是数据插入方法:

    A.ModelName.objects.create(参数=字典类型数据)

    B.ModelName.objects.get(列表或元组)

    C.ModelName.objects.update_or_create(参数=字典类型数据)

    D.ModelName.objects.bulk_create(列表或元组)


    手写