Degree And Cardinality In SQL https://www.skillvertex.com/blog Fri, 10 May 2024 06:35:53 +0000 en-US hourly 1 https://wordpress.org/?v=6.6.1 https://www.skillvertex.com/blog/wp-content/uploads/2024/01/favicon.png Degree And Cardinality In SQL https://www.skillvertex.com/blog 32 32 Degree And Cardinality In SQL https://www.skillvertex.com/blog/degree-and-cardinality-in-sql/ https://www.skillvertex.com/blog/degree-and-cardinality-in-sql/#respond Fri, 10 May 2024 06:35:53 +0000 https://www.skillvertex.com/blog/?p=1568 Read more]]> Degree And Cardinality In SQL

Answer.

In SQL, degree and cardinality are terms used to describe aspects of the relationships between tables in a database.

  1. Degree:
  • Degree refers to the number of attributes or columns in a table.
  • It represents how many columns are present in a table.
  • For example, if you have a table called “Employees” with columns like “EmployeeID,” “FirstName,” “LastName,” and “Salary,” then the degree of the “Employees” table is 4 because it has four columns or attributes.

2. Cardinality:

  • Cardinality refers to the number of rows or records in a table.
  • It represents how many records are present in a table.
  • For example, if the “Employees” table contains 1000 records, then the cardinality of the “Employees” table is 1000 because it has 1000 rows.

In SQL, understanding the degree and cardinality of tables is crucial for designing and querying databases effectively. These concepts help in defining the structure and size of the tables, which, in turn, affects the efficiency and performance of database operations.

Hridhya Manoj

Hello, I’m Hridhya Manoj. I’m passionate about technology and its ever-evolving landscape. With a deep love for writing and a curious mind, I enjoy translating complex concepts into understandable, engaging content. Let’s explore the world of tech together

]]> https://www.skillvertex.com/blog/degree-and-cardinality-in-sql/feed/ 0