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Relational Calculus in DBMS

Relational calculus in DBMS is a non-procedural query language used to specify what data to retrieve rather than how to […]

SQL / TechAlmirah / 1 January 2025

Have you ever wondered how to perform complex data comparisons within a single SQL statement? Enter the world of nested

Relational algebra in DBMS is a procedural query language used to perform operations on relational databases. It provides a foundation

SQL / TechAlmirah / 31 December 2024

Have you ever faced the challenge of comparing individual data points against aggregated results in SQL? This is where a

In database management systems (DBMS), understanding the difference between view and table is crucial for efficient database design and querying.

SQL / TechAlmirah / 30 December 2024

Understanding how to use aggregate subqueries in SQL can significantly enhance your data analysis capabilities. These subqueries allow you to

Codd’s Rules in DBMS are a set of 12 guidelines proposed by Dr. Edgar F. Codd to define and evaluate

SQL / TechAlmirah / 29 December 2024

Joining views in SQL is a powerful technique that can significantly simplify complex queries. By leveraging views, you can encapsulate

Referential integrity in DBMS is a fundamental concept that ensures the consistency and accuracy of relationships between tables in a