Question

a _____establish a relationship between different database tables​

Answer 1

Explanation:

A relationship is established between two database tables when one table uses a foreign key that references the primary key of another table. This is the basic concept behind the term relational database.

Answer 2

The relationship is established by a foreign key.

• An association between two databases is established with the help of keys.
• This is when a record in one utilises a foreign key to link to a table's main key in another one.
• The fundamental idea underlying the phrase "relational database" is this. There are the following types of relationships -

1. One to One
2. One to Many
3. Many to Many

• Each record in the table is identified by a primary key. It is a form of candidate key that may be produced automatically by the database to verify that it is distinctive.
• In a table, it is frequently the initial column. A foreign key, yet another candidate key, links a record to information in another table. but not the main one.

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