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What role does a foreign key play in the establishment of a relationship between two entities or tables?
Wiki User
∙ 12y ago
A foreign key is a relationship or link between two tables which ensures that the data stored in a database is consistent.
Wiki User
∙ 12y ago
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How can a Foreign Key and a Primary Key interact with each other?
A foreign key in a table references the primary key in another table, creating a relationship between the two tables. This ensures referential integrity, meaning that values in the foreign key column must exist in the primary key column. This relationship allows data to be linked and maintained consistently between the tables.
What do you mean by the term private international law?
Private international law, also known as conflict of laws, is the set of rules that determine which country's laws apply in cases involving foreign elements. It governs legal disputes between individuals or entities that have connections to multiple countries, providing a framework for resolving conflicts of law across borders.
What is the function of a Foreign Key in SQL?
foreign key in the sql is to query on the related information aavailable in the table.
What does the term foreign key mean in databases?
The foreign key is used as a reference in a table to the primary key of another table. For example: consider a table employee with id(primary key), name, address,department_id(foreign key) as its fields.Another table department with fields department_id(primary key) and dept_name. So, department_id is primary key in department table and foreign key in employee table.
This department promotes American interests in foreign trade maintaining a network of offices that report on the business activity in foreign nations?
The Department of Commerce is responsible for promoting American interests in foreign trade by maintaining a network of offices that report on business activity in foreign nations. Through these efforts, the department aims to facilitate economic growth and enhance international trade opportunities for American businesses.
What is the difference between relation and relationship in database?
Relation: In Database a relation represents a table or an entity that contain diffrenet attributes.An Entity constructs a relation(table) in DBMS . Relationship: In Data base relationship is that how the two entities are connected to each other ,i.e what kind of relationship type they hold between them.Primary/Foreign key is used to specify or hold this relationship. By Tanzeel Ur Rahman Bhatti
Using foreign key on ER diagram?
Foreign keys isnt drawn at a ER-diagram. The relation drawn between entities is enough to show, that der is at foreign key
What is the foreign relationship between Uganda and Haiti?
wicked.
which of these may be targeted by foreign entities?
all of them
What is the relationship between tables in library management system?
In a library management system, tables represent different entities such as books, users, transactions, etc. The relationship between these tables is established through keys like primary keys and foreign keys. For example, the books table may have a primary key "book_id" which is referenced as a foreign key in the transactions table to link books with users.
What happen when you delete foreign key?
You will lose the connection between the tables and break the relationship.
What is Foreign intelligence entities?
A Foreign Intelligence Entity is a term in which describes organizations who are based abroad with the purpose to use various intelligence techniques in order to gather specific information. These entities can be government and non-government.
What are the basic components of a database?
Tables, Entities, Attributes, Primary Keys, and Foreign Keys
What key defines a relationship between two tables 1 Primary key 2 Secondary key 3 Foreign key?
Foreign key is used to define a relationship between two tables by referencing the primary key of another table. It ensures data integrity and enforces referential integrity between the related tables.
What is intercompany matrix?
It is a matrix indicating the out of balance transaction figures between two entities who are subsidiaries of one another or subsidiaries of some other entity. The matrix is periodicaly reveiwed to diagnose and clear the out of balance figures. The out of balance figures can also be due to foreign exchange transactions between two entities whereby gain/loss arise on revaluation of balances periodically.
What is a foreign key in Microsoft Access?
It is a field in one table that is a primary key in another table. It is used to create a relationship between two tables, normally a one to many relationship. The one side is where it is the primary key and where it is the foreign key, that is the many tables.
A major foreign policy change of president Nixon was the establishment of?
diplomatic relations with communist china
