多选题Which two statements about sequences are true? （）AYou use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value.BYou use a CURRVAL pseudo column to look at the current

题目
多选题
Which two statements about sequences are true? （）
A

You use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value.

B

You use a CURRVAL pseudo column to look at the current value just generated from a sequence, without affecting the further values to be generated from the sequence.

C

You use a NEXTVAL pseudo column to obtain the next possible value from a sequence by actually retrieving the value from the sequence.

D

You use a CURRVAL pseudo column to generate a value from a sequence that would be used for a specified database column.

E

If a sequence starting from a value 100 and incremented by 1 is used by more then one application, then all of these applications could have a value of 105 assigned to their column whose value is being generated by the sequence.

F

You use REUSE clause when creating a sequence to restart the sequence once it generates the maximum value defined for the sequence.

相似考题

1.Which two statements are true regarding the default behavior of the ORDER BY clause? ()A.Null values are left out of the sort.B.Character values are displayed from Z to AC.Date values are displayed with the earliest value first.D.Null values are displayed last for descending sequences.E.Numeric values are displayed with the lowest values first.

2.Which two statements are true about AH?() (Choose two.)A. AH provides data integrity.B. AH is identified by IP protocol 50.C. AH is identified by IP protocol 51.D. AH cannot work in conjunction with ESP

3.Which two statements are true about precedence values in policy?() (Choose two.)A. 1 is the default precedence.B. A lower number is preferred.C. A higher number is preferred.D. 100 is the default precedence.

4.Which two statements are true about pool－based source NAT? ()(Choose two.)A. PAT is not supported.B. PAT is enabled by default.C. It supports the address-persistent configuration option.D. It supports the junos-global configuration option.

更多“Which two statements about sequences are true? （）”相关问题

  • 第1题：

    Which two statements about VACLs on Cisco Nexus 7000 Series Switches are true？ （）

    • A、 A single VACL can be shared across two or more VDCs.
    • B、 Use of VACLs requires no special license to be installed.
    • C、 VACLs make use of IP or MAC ACLs.
    • D、 Only options drop and forward are permitted.

    正确答案:B,C

  • 第2题：

    Which two statements are true about traffic shaping？（）

    • A、Out-of-profile packets are queued.
    • B、It causes TCP retransmits.
    • C、Marking/remarking is not supported.
    • D、It does not respond to BECN and ForeSight Messages.
    • E、It uses a single/two-bucket mechanism for metering.

    正确答案:A,C

  • 第3题：

    Which two statements about OSPF IPv6 routing are true？（）

    • A、It requires OSPF version 3.
    • B、automatically detects neighbors over NHMA interfaces
    • C、It supports encryption using
    • D、It uses LSA type 9
    • E、It uses LSA type 8

    正确答案:A,E

  • 第4题：

    Which two statements are true about pool-based source NAT? （）(Choose two.)

    • A、PAT is not supported.
    • B、PAT is enabled by default.
    • C、It supports the address-persistent configuration option.
    • D、It supports the junos-global configuration option.

    正确答案:B,C

  • 第5题：

    Which two statements are true about standard database auditing（）

    • A、DDL statements can be audited.
    • B、Statements that refer to stand-alone procedure can be audited.
    • C、Operations by the users logged on as SYSDBA cannot be audited.
    • D、Only one audit record is ever created for a session per audited statement even though it is executedmore than once.

    正确答案:A,B

  • 第6题：

    What is true about sequences?（）

    • A、Once created, a sequence belongs to a specific schema.
    • B、Once created, a sequence is linked to a specific table.
    • C、Once created, a sequence is automatically available to all users.
    • D、Only the DBA can control which sequence is used by a certain table.
    • E、Once created, a sequence is automatically used in all INSERT and UPDATE statements.

    正确答案:A

  • 第7题：

    多选题
    Which two statements are true about L2TP tunnels?（） (Choose two.)
    A

    Traffic is clear text

    B

    Traffic is encrypted 

    C

    They are initiated by the LNS

    D

    They are initiated by the LAC


    正确答案： B,D
    解析： 暂无解析

  • 第8题：

    多选题
    By default, which two statements are true about export routing polices?（）
    A

    Export polices can evaluate only active routes

    B

    Export polices can evaluate all routes

    C

    Export polices can be applied to the forwarding table

    D

    Export polices can be applied to interfaces


    正确答案： B,A
    解析： 暂无解析

  • 第9题：

    多选题
    Which two statements about creating constraints are true?（）
    A

    Constraint names must start with SYS_C

    B

    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


    正确答案： E,D
    解析： 暂无解析

  • 第10题：

    单选题
    What is true about sequences? （）
    A

    Once created, a sequence belongs to a specific schema.

    B

    Once created, a sequence is linked to a specific table.

    C

    Once created, a sequence is automatically available to all users.

    D

    Only the DBA can control which sequence is used by a certain table.

    E

    Once created, a sequence is automatically used in all INSERT and UPDATE statements.


    正确答案： D
    解析： 暂无解析

  • 第11题：

    Which two statements are true about L2TP tunnels?（） (Choose two.)

    • A、Traffic is clear text
    • B、Traffic is encrypted 
    • C、They are initiated by the LNS
    • D、They are initiated by the LAC

    正确答案:A,D

  • 第12题：

    Which two statements about the Cisco Nexus 1000V VSM are true?（）

    • A、It performs switching decisions and forwarding for the VEM
    • B、It can be run on a virtual machine
    • C、It can be used for remote VEM switching Iine cards

    正确答案:B,C

  • 第13题：

    Which two statements about VPLS are true？ （）

    • A、There is a full mesh of pseudowires.
    • B、There is a partial mesh of pseudowires.
    • C、Only L2TPv3 can be used for pseudowire establishment.
    • D、There is split-horizon to avoid loops.

    正确答案:A,D

  • 第14题：

    Which two statements are true about precedence values in policy?（） (Choose two.)

    • A、1 is the default precedence.
    • B、A lower number is preferred.
    • C、A higher number is preferred.
    • D、100 is the default precedence.

    正确答案:B,D

  • 第15题：

    Which two statements are true about record groups?（）

    • A、They are stored in the database. 
    • B、They are stored in local Forms memory. 
    • C、The type is specified explicitly at design time. 
    • D、The type is implied by when and how it is created.

    正确答案:B,D

  • 第16题：

    Which two statements about creating constraints are true?（）

    • A、Constraint names must start with SYS_C
    • B、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

    正确答案:C,D

  • 第17题：

    多选题
    Which two statements are true regarding the default behavior of the ORDER BY clause? （）
    A

    Null values are left out of the sort.

    B

    Character values are displayed from Z to A

    C

    Date values are displayed with the earliest value first.

    D

    Null values are displayed last for descending sequences.

    E

    Numeric values are displayed with the lowest values first.


    正确答案： C,B
    解析： 暂无解析

  • 第18题：

    多选题
    Which two statements are true about AH?（） (Choose two.)
    A

    AH provides data integrity.

    B

    AH is identified by IP protocol 50.

    C

    AH is identified by IP protocol 51.

    D

    AH cannot work in conjunction with ESP


    正确答案： D,C
    解析： 暂无解析

  • 第19题：

    多选题
    Which two statements about SCSI are true？ （）
    A

    The bus is limited to 32 devices

    B

    It is a full duplex serial standard

    C

    It is a half-duplex serial standard

    D

    It allows up to 320 MB/s of shared channel bandwidth


    正确答案： B,C
    解析： 暂无解析

  • 第20题：

    多选题
    Which two statements are true about traffic shaping？（）
    A

    Out-of-profile packets are queued.

    B

    It causes TCP retransmits.

    C

    Marking/remarking is not supported.

    D

    It does not respond to BECN and ForeSight Messages.

    E

    It uses a single/two-bucket mechanism for metering.


    正确答案： E,B
    解析： 暂无解析

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