For which two constraints does the Oracle Server implicitly create a unique index? （）A、NOT NULLB、PRIMARY KEYC、FOREIGN KEYD、CHECKE、UNIQUE
For which two constraints does the Oracle Server implicitly create a unique index? （）
- A、NOT NULL
- B、PRIMARY KEY
- C、FOREIGN KEY
- D、CHECK
- E、UNIQUE
相关考题：
Which two MBGP IPv4 sub－AFIs does the JUNOS software support?() A.unicastB.anycastC.multicastD.broadcast
Which two metrics does the Executive report summarize? ()(Choose two.) A. QoS statisticsB. WAN performanceC. acceleration statisticsD. compression statistics
With which two does a scheduler map associate? () A.SchedulerB.BA ClassifierC.QueuesD.Interface
Which two functions does Cisco Configuration Assistant provide？（）A、 device DiscoveryB、 call forwardingC、 call routing configurationD、 command line configurationE、 wireless connectivity
You execute this command to drop the ITEM table， which has the primary key referred in the ORDERtable： SQL DROP TABLE scott.item CASCADE CONSTRAINTS PURGE； Which two statements are true about the effect of the command（）A、No flashback is possible to bring back the ITEM table.B、The ORDER table is dropped along with the ITEM table.C、The dependent referential integrity constraints in the ORDER table are disabled.D、The dependent referential integrity constraints in the ORDER table are removed.E、The table definition of the ITEM table and associated indexes are placed in the recycle bin.
Which three statements correctly describe the functions and use of constraints? （）A、Constraints provide data independence.B、Constraints make complex queries easy.C、Constraints enforce rules at the view level.D、Constraints enforce rules at the table level.E、Constraints prevent the deletion of a table if there are dependencies.F、Constraints prevent the deletion of an index if there are dependencies.
Which two statements are true about constraints? （）A、The UNIQUE constraint does not permit a null value for the column.B、A UNIQUE index gets created for columns with PRIMARY KEY and UNIQUE constraints.C、The PRIMARY KEY and FOREIGN KEY constraints create a UNIQUE index.D、The NOT NULL constraint ensures that null values are not permitted for the column.
Which two statements about creating constraints are true?（）A、Constraint names must start with SYS_CB、All constraints must be defines at the column level.C、Constraints can be created after the table is created.D、Constraints can be created at the same time the table is created.E、Information about constraints is found in the VIEW_CONSTRAINTS dictionary view.
Which two statements about creating constraints are true?（）A、Constraint names must start with SYS_CB、All constraints must be defines at the column levelC、Constraints can be created after the table is createdD、Constraints can be created at the same time the table is createdE、Information about constraints is found in the VIEW_CONSTRAINTS dictionary view
多选题Which two metrics does the Executive report summarize? （）(Choose two.)AQoS statisticsBWAN performanceCacceleration statisticsDcompression statistics
多选题Which two functions does Cisco Configuration Assistant provide?（）Awireless connectivityBcall routing configurationCdevice discoveryDcall forwardingEcommand line configuration
多选题For which two constraints does the Oracle Server implicitly create a unique index? （）ANOT NULLBPRIMARY KEYCFOREIGN KEYDCHECKEUNIQUE
多选题Which two benefits does VoFR provide？ （）Abandwidth efficiencyBcell-switchingCcongestion notificationDheterogeneous network
单选题The operation between two fuel injections is called a working cycle, which consists of a fixed sequence of eventsWhat does "which" mean in this sentence?（）Aa working cycleBthe operationCtwo fuel injectionsDevents
多选题Which two conditions will cause switch-to-wire to occur? （）(Choose two.)Aloss of powerBQoS congestionCsoftware failure occuredDWX device exceeded its license speedEtraffic does not match application definiton
多选题Which two statements about creating constraints are true?（）AConstraint names must start with SYS_CBAll constraints must be defines at the column levelCConstraints can be created after the table is createdDConstraints can be created at the same time the table is createdEInformation about constraints is found in the VIEW_CONSTRAINTS dictionary view
多选题Which two statements are true about constraints? （）AThe UNIQUE constraint does not permit a null value for the column.BA UNIQUE index gets created for columns with PRIMARY KEY and UNIQUE constraints.CThe PRIMARY KEY and FOREIGN KEY constraints create a UNIQUE index.DThe NOT NULL constraint ensures that null values are not permitted for the column.
多选题Which two content-filtering features does FTP support?（） (Choose two.)Ablock extension listBblock MIME typeCprotocol command listDnotifications-options
多选题Which two MBGP IPv4 sub-AFIs does the JUNOS software support?（）AunicastBanycastCmulticastDbroadcast
多选题You execute this command to drop the ITEM table， which has the primary key referred in the ORDERtable： SQL DROP TABLE scott.item CASCADE CONSTRAINTS PURGE； Which two statements are true about the effect of the command（）ANo flashback is possible to bring back the ITEM table.BThe ORDER table is dropped along with the ITEM table.CThe dependent referential integrity constraints in the ORDER table are disabled.DThe dependent referential integrity constraints in the ORDER table are removed.EThe table definition of the ITEM table and associated indexes are placed in the recycle bin.
多选题Which two statements about creating constraints are true?（）AConstraint names must start with SYS_CBAll constraints must be defines at the column level.CConstraints can be created after the table is created.DConstraints can be created at the same time the table is created.EInformation about constraints is found in the VIEW_CONSTRAINTS dictionary view.