SQL Query Analysis with Schema Schema: student(rollNo, name, degree, year, sex, deptNo, advisor): deptNo: Foreign key referencing deptId in the department relation. advisor: Foreign key referencing empId in the professor relation. department(deptId, name, hod, phone): hod: Foreign key referencing empId …
Understanding ER Diagrams and Relational Mapping in DBMS Question: Which of the following statements is true about the above ER diagram? The minimum number of relations required for the above ER diagram is 2. Attribute C will be present as …
Are you preparing for GATE CSE, NTA UGC NET, ISRO, or NIELIT Computer Science exams? Understanding DBMS and mastering SQL is crucial for scoring high in competitive exams. This article contains carefully selected practice questions on functional dependencies, normalization (3NF …
Prepare for NTA UGC NET Computer Science with these carefully curated questions covering SQL queries, relational algebra, entity-relationship models, foreign keys, normalization, and more. This comprehensive guide provides concept clarity and includes essential topics like referential integrity, joins (INNER and …
Relational Databases: An Overview Introduction A relational database organizes data into tables, making it one of the most widely used database models today. It represents data and their relationships using structured tables and supports manipulation and definition through SQL …
Mastering Relational Algebra, SQL, and Functional Dependencies for Competitive Exams In today’s competitive world, mastering database concepts is not just a requirement for academic excellence but also a necessity for clearing challenging competitive exams like GATE CSE, UGC …
