What is a Foreign Key Field ?

What is a Foreign Key Field ?
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1 Answer

Answer :

Answer : If the primary key field of a file in the database is used as a general field of the data file in the other corner , then that field is called foreign key field.
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Related questions

What is a composite primary key field ?

Description : What is a composite primary key field ?

Last Answer : Answer : A combination of two or more attributes or keys can collectively identify an NTT set, but they are called composite primary keys.

What is the primary key field ?

Description : What is the primary key field ?

Last Answer : The field in the data table by which the values ​​of a record can be completely distinguished from other records is called the primary key.

Specifies the key - explain ?

Description : Specifies the key - explain ?

Last Answer : The tag specifies any direction . The tag sits as a symbol of a specific direction This symbol sits in the angle bracket. The spelling of the tag is to be spelled correctly. The word bold is used to bold the html text. The ... be < /b>. Then the beginning and end of bold will be < b> .

Explain when the primary key fields of two data tables need to be the same. ?

Description : Explain when the primary key fields of two data tables need to be the same. ?

Last Answer : Due to the following condition of the relation, the primary key fields of the data tables of the two databases need to be the same to create the relation. 1. The common field must be the primary key ... field size , format etc. should be the same and two tables should be open at the same time.

What are the types of key fields and what are they ?

Description : What are the types of key fields and what are they ?

Last Answer : There are generally 3 types of key fields such as a) Primary Key Field b) Composite Primary Key Field c) Foreign Key Field .

Why is the composite primary field used ?

Description : Why is the composite primary field used ?

Last Answer : Sometimes it is not possible to form a primary key with a field or to identify a record. In this case, the primary key is formed by combining two or more fields. This type of primary key ... primary key. When composing a primary key with two or more fields, the composite primary key is used.

Field and record are not one - explain. ?

Description : Field and record are not one - explain. ?

Last Answer : Answer : Field and record are not the same as explained below- 1. Field is the column name of the data table. On the other hand, the record is a row of data in all the columns of the data table ... data table is singular. In the case of records, the data in different fields of a row may be similar.

What is a database field ?

Description : What is a database field ?

Last Answer : Database field is the title of the column.

What is a field called ?

Description : What is a field called ?

Last Answer : The field used to identify file and database records is called the key field.

What is a field ?

Description : What is a field ?

Last Answer : File record identification , search , relationships, etc. are done based on a single field . Sai field is called key field.

What is a text field ?

Description : What is a text field ?

Last Answer : , symbols, etc. are used in the field with Text data type , it is called Text ball.

Write the significance of a foreign key. -Technology

Description : Write the significance of a foreign key. -Technology

Last Answer : A foreign key is used to Establish the relationship between any two tables of RDBMS.

A foreign key is a reference of the ………….. key in another table. -Technology

Description : A foreign key is a reference of the ………….. key in another table. -Technology

Last Answer : A foreign key is a reference of the primary keyin another table.

A foreign key is a primary key in another table. -Technology

Description : A foreign key is a primary key in another table. -Technology

Last Answer : True When a table’s primary key field is added to a related table in order to create the common field which relates two tables, it is called a foreign key in the related table.

What are the Referential actions supported by FOREIGN KEY integrity constraint ?

Description : What are the Referential actions supported by FOREIGN KEY integrity constraint ?

Last Answer : UPDATE and DELETE Restrict - A referential integrity rule that disallows the update or deletion of referenced data. DELETE Cascade - When a referenced row is deleted all associated dependent rows are deleted.

What are the Referential actions supported by FOREIGN KEY integrity constraint?

Description : What are the Referential actions supported by FOREIGN KEY integrity constraint?

Last Answer : UPDATE and DELETE Restrict – A referential integrity rule that disallows the update or deletion of referenced data. DELETE Cascade – When a referenced row is deleted all associated dependent rows are deleted.

Drop Table cannot be used to drop a table referenced by a …………… constraint. A) Local Key B) Primary Key C) Composite Key D) Foreign Key

Description : Drop Table cannot be used to drop a table referenced by a …………… constraint. A) Local Key B) Primary Key C) Composite Key D) Foreign Key

Last Answer : D) Foreign Key

............. is a combination of two of more attributes used as a primary key A) Composite Key B) Alternate Key C) Candidate Key D) Foreign Key

Description : ............. is a combination of two of more attributes used as a primary key A) Composite Key B) Alternate Key C) Candidate Key D) Foreign Key

Last Answer : A) Composite Key

The candidate key is that you choose to identify each row uniquely is called …………….. A) Alternet Key B) Primary Key C) Foreign Key D) None of the above

Description : The candidate key is that you choose to identify each row uniquely is called …………….. A) Alternet Key B) Primary Key C) Foreign Key D) None of the above

Last Answer : B) Primary Key

ey to represent relationship between tables is called (A) Primary key (B) Secondary Key (C) Foreign Key (D) None of these

Description : ey to represent relationship between tables is called (A) Primary key (B) Secondary Key (C) Foreign Key (D) None of these

Last Answer : (C) Foreign Key

Based on the cardinality ratio and participation ............... associated with a relationship type, choose either the Foreign Key Design, the Cross Referencing Design or Mutual Referencing Design. (A) Entity (B) Constraints (C) Rules (D) Keys

Description : Based on the cardinality ratio and participation ............... associated with a relationship type, choose either the Foreign Key Design, the Cross Referencing Design or Mutual Referencing Design. (A) Entity (B) Constraints (C) Rules (D) Keys

Last Answer : (B) Constraints

Drop Table cannot be used to drop a Table referenced by .................. constraint. (a) Primary key (b) Sub key (c) Super key (d) Foreign key (A) (a) (B) (a), (b) and (c) (C) (d) (D) (a) and (d)

Description : Drop Table cannot be used to drop a Table referenced by .................. constraint. (a) Primary key (b) Sub key (c) Super key (d) Foreign key (A) (a) (B) (a), (b) and (c) (C) (d) (D) (a) and (d)

Last Answer : (C) (d)

Which of the following statement is true? (1) A Primary key is also a candidate key (2) Each relation has at least one foreign key (3) Foreign keys can’t have null values (4) A Primary key is also an alternate key

Description : Which of the following statement is true? (1) A Primary key is also a candidate key (2) Each relation has at least one foreign key (3) Foreign keys can’t have null values (4) A Primary key is also an alternate key

Last Answer : Foreign keys can’t have null values

An attribute that uniquely identifies the rows of a table is known as the ....... key. (1) primary (2) candidate (3) composite (4) foreign

Description : An attribute that uniquely identifies the rows of a table is known as the ....... key. (1) primary (2) candidate (3) composite (4) foreign 

Last Answer : primary

Define the term Foreign Key.

Description : Define the term Foreign Key. 

Last Answer : A FOREIGN KEY is a key used to link two tables together. A FOREIGN KEY is a field (or collection of fields) in one table that refers to the PRIMARY KEY in another table. It ... between tables because it references the primary key of another table, thereby establishing a link between them.

Transgenic plants are the ones (a) generated by introducing foreign DNA into a cell and regenerating a plant from that cell (b) produced after protoplast fusion in artificial medium(c) grown in artificial medium after hybridization in the field (d) produced by a somatic embryo in artificial medium.

Description : Transgenic plants are the ones (a) generated by introducing foreign DNA into a cell and regenerating a plant from that cell (b) produced after protoplast fusion in artificial medium (c) grown in ... medium after hybridization in the field (d) produced by a somatic embryo in artificial medium.

Last Answer : (a) generated by introducing foreign DNA into a

Key field is a unique identifier for each record. It is defined in the form of (a) rows (b) columns -Technology

Description : Key field is a unique identifier for each record. It is defined in the form of (a) rows (b) columns -Technology

Last Answer : (b) Key is a data item that allows you to uniquely identify individual occurrences which is defined as the column or set of columns.

Primary key field gives us permission to record duplicate entry. -Technology

Description : Primary key field gives us permission to record duplicate entry. -Technology

Last Answer : False A primary key is a key which identifies records uniquely in a table so it does not give us permission to record duplicate entry.

A primary key field does not allow numbers. -Technology

Description : A primary key field does not allow numbers. -Technology

Last Answer : False Primary key has to identify a unique value which can be present in a table, in a number form also. It means primary key field allow number too.

…………. is a field which is used as a primary key and numbers each record sequentially. -Technology

Description : …………. is a field which is used as a primary key and numbers each record sequentially. -Technology

Last Answer : AutoNumberis a field which is used as a primary key and numbers each record sequentially.

Field Hockey Key 8

Description : Field Hockey Key 8

Last Answer : Field hockey is played on small, hard balls with a range of 63 mm on artificial soil covered with pebbles , natural grass , sand or water. It is a popular sport among men and women in many parts of ... and women of any one sex , although the game can be played with a combination of the two sexes.

What are the key features of field sales software?

Description : What are the key features of field sales software?

Last Answer : The main features include: Dashboard management Route Optimization Fast estimates Time tracker Controlled access Invoices online payments

What is the shortcut key to display field codes?

Description : What is the shortcut key to display field codes?

Last Answer : What is the answer ?

What are the key considerations for people in sales while they use social media for selling (Social Selling)? A. Check if their clients are on social media and then connect with them on the relevant social networks B. Avoid using social media to sell C. Build their professional brand and then position themselves as subject matter experts in their field to build credibility D. Connect with their clients and prospects on LinkedIn and then start liking/commenting/sharing their posts

Description : What are the key considerations for people in sales while they use social media for selling (Social Selling)? A. Check if their clients are on social media and then connect with them ... D. Connect with their clients and prospects on LinkedIn and then start liking/commenting/sharing their posts

Last Answer : C. Build their professional brand and then position themselves as subject matter experts in their field to build credibility

What are the key considerations for people in sales while they use social media for selling (Social Selling)? A. Check if their clients are on social media and then connect with them on the relevant social networks B. Avoid using social media to sell C. Build their professional brand and then position themselves as subject matter experts in their field to build credibility D. Connect with their clients and prospects on LinkedIn and then start liking/commenting/sharing their posts

Description : What are the key considerations for people in sales while they use social media for selling (Social Selling)? A. Check if their clients are on social media and then connect with them ... D. Connect with their clients and prospects on LinkedIn and then start liking/commenting/sharing their posts

Last Answer : C. Build their professional brand and then position themselves as subject matter experts in their field to build credibility

The Method of file organisation in which data records in a file are arranged in a specified order according to a key field is known as the1 Direct access method 2) Queuing method 3) Predetermined method 4) Sequential method

Description : The Method of file organisation in which data records in a file are arranged in a specified order according to a key field is known as the1 Direct access method 2) Queuing method 3) Predetermined method 4) Sequential method

Last Answer : 4) Sequential method