Found 1 Articles for DRC

Database management systems (DBMS) employ the non−procedural query language known as Domain Relational Calculus (DRC). DRC focuses simply on what data to collect without outlining the techniques for retrieval, as opposed to Relational Algebra, which provides methods and procedures for fetching data. It offers a declarative method of database querying. Syntax { | P(x1, x2, ..., xn) } Here, refers to the resulting domain variable P(x1, x2, ..., xn) refers to the condition equivalent to the predicate calculus. Example 1 This example shows us to solve the query which is how to find the names ... Read More