When defining a referential constraint between the parent table T2 and the dependent table T1, which of the following is true?（）A、The list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.B、The list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.C、The list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.D、The list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.
When defining a referential constraint between the parent table T2 and the dependent table T1, which of the following is true?（）
- A、The list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.
- B、The list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.
- C、The list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.
- D、The list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.
相关考题：
Referential theory holds that a linguistic sign derives its meaning from that which refers to something in the reality.()
When defining a function activity, what is true about the Result Type?() (Choose two.) A. Result Type is optional.B. Result Type is mandatory.C. Result Type can be changed after it is assigned to the function activity.D. Result Type should belong to the same item type as the function activity
When configuring resource access policies in a Junos Pulse Access Control Service device, which entry is permitted when defining the specific resources?() A. HostnameB. fully qualified domain nameC. IP addressD. address book entry
When defining an application for AppFlow acceleration, which two must be configured on the WX device?()(Choose two.) A. Define application type.B. Enable AppFlow for the application.C. Enable monitoring for the application.D. Define source and destination IP addresses.
When defining a referential constraint between the parent table T2 and the dependent table T1, which of the following is true?() A.The list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.B.The list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.C.The list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.D.The list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.
The most suitable question type to check students′ comprehension and develop theircritical thinking is __________.A.rhetorical questionsB.referential questionsC.close questionsD.display questions
What are the three main types of networks that must be considered when defining a security policy？
You need to configure a GRE tunnel on a IPSec router. When you are using the SDM to configurea GRE tunnel over IPsec， which two parameters are required when defining the tunnel interfaceinformation？（）A、The crypto ACL numberB、The IPSEC mode （tunnel or transport）C、The GRE tunnel interface IP addressD、The GRE tunnel source interface or IP address， and tunnel destination IP addressE、The MTU size of the GRE tunnel interface
Which three components can be leveraged when defining a local whitelist or blacklist for antispam on a branch SRX Series device? (Choose three.)（）A、spam assassin filtering scoreB、sender countryC、sender IP addressD、sender domainE、sender e-mail address
When defining shipping for a store using WebSphere Commerce Accelerator a seller must create：（）A、shipping jurisdictions for each fulfillment centerB、shipping codes for each set of shipping charges to be applied to productsC、shipping methods for each carrier and service offered by the carrierD、shipping zones for each geographical region where goods will be shipped
When defining resources for a concurrent resource group， which of the following is NOT supported？（） A、 Application Servers using diskB、 Definition of Multiple IP aliasesC、 Volume Groups using raw logical volumesD、 Volume Groups supporting concurrent access
A method is（）A、an implementation of an abstraction.B、an attribute defining the property of a particular abstraction.C、a category of objects.D、an operation defining the behavior for a particular abstraction.E、a blueprint for making operations.
You need to perform an online table redefinition of an existing SALES table to partition it into two tablespaces TBS1 and TBS2. The SALES table has a materialized view， materialized log， indexes， referential integrity constraint， and triggers with the PRECEDES clause existing on it. What action is required for dependent objects when you perform online table redefinition？（） A、 The dependent materialized view should have a complete refresh performed after the online table redefinition process.B、 Triggers with the PRECEDES clause should be disabled before the online table redefinition process.C、 Referential integrity constraints must be manually enabled after the online table redefinition process.D、 The materialized log should be dropped before the online table redefinition process.
单选题A method is（）Aan implementation of an abstraction.Ban attribute defining the property of a particular abstraction.Ca category of objects.Dan operation defining the behavior for a particular abstraction.Ea blueprint for making operations.
多选题When defining a function activity, what is true about the Result Type?（） (Choose two.)AResult Type is optional.BResult Type is mandatory.CResult Type can be changed after it is assigned to the function activity.DResult Type should belong to the same item type as the function activity
问答题What are the three main types of networks that must be considered when defining a security policy？
单选题You need to perform an online table redefinition of an existing SALES table to partition it into two tablespaces TBS1 and TBS2. The SALES table has a materialized view， materialized log， indexes， referential integrity constraint， and triggers with the PRECEDES clause existing on it. What action is required for dependent objects when you perform online table redefinition？（）A The dependent materialized view should have a complete refresh performed after the online table redefinition process.B Triggers with the PRECEDES clause should be disabled before the online table redefinition process.C Referential integrity constraints must be manually enabled after the online table redefinition process.D The materialized log should be dropped before the online table redefinition process.
多选题Which three components can be leveraged when defining a local whitelist or blacklist for antispam on a branch SRX Series device? (Choose three.)（）Aspam assassin filtering scoreBsender countryCsender IP addressDsender domainEsender e-mail address
多选题You need to configure a GRE tunnel on a IPSec router. When you are using the SDM to configurea GRE tunnel over IPsec， which two parameters are required when defining the tunnel interfaceinformation？（）AThe crypto ACL numberBThe IPSEC mode （tunnel or transport）CThe GRE tunnel interface IP addressDThe GRE tunnel source interface or IP address， and tunnel destination IP addressEThe MTU size of the GRE tunnel interface
单选题When defining a referential constraint between the parent table T2 and the dependent table T1, which of the following is true?（）AThe list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.BThe list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.CThe list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.DThe list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.
单选题When defining resources for a concurrent resource group， which of the following is NOT supported？（）A Application Servers using diskB Definition of Multiple IP aliasesC Volume Groups using raw logical volumesD Volume Groups supporting concurrent access
单选题When configuring resource access policies in a Junos Pulse Access Control Service device, which entry is permitted when defining the specific resources?（）AHostnameBfully qualified domain nameCIP addressDaddress book entry
多选题When defining an application for AppFlow acceleration, which two must be configured on the WX device?（）(Choose two.)ADefine application type.BEnable AppFlow for the application.CEnable monitoring for the application.DDefine source and destination IP addresses.