SQL Queries (SELECT, UPDATE & DELETE) with Employee Database | DBMS Module 3 | BCS403 | VTU
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In this lecture of Database Management System (DBMS) – BCS403 Module 3, we solve one of the most important SQL query writing questions asked in VTU examinations.
Using the given Employee and Department relations, we write SQL queries for data retrieval, update, and delete operations. Every query is explained step-by-step in a simple and exam-oriented manner so that you can easily understand and write it in the examination.
This question is frequently asked in Semester End Examinations (SEE), Internal Assessments (CIE), Previous Year Question Papers (PYQs), DBMS Lab Examinations, and Technical Interviews.
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📝 Question Covered
Consider the following schema:
Employee (SSN, F_name, M_name, L_name, Address, Salary, D_no)
Department (Dname, Dno, MgrSSN, Mgr_S_Date)
Write SQL queries for the following:
(i) Retrieve the name and address of all employees who work for the Research department.
(ii) Retrieve all employees whose address is in Houston, Texas.
(iii) Retrieve all employees in Department 5 whose salary is between $30,000 and $40,000.
(iv) Update all employees in the Research department by giving a 10% salary raise.
(v) Delete the employee having SSN = 123456789.
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📖 Topics Covered
✔ SQL SELECT Statement
✔ SQL UPDATE Statement
✔ SQL DELETE Statement
✔ WHERE Clause
✔ BETWEEN Operator
✔ JOIN Operation
✔ Filtering Records
✔ String Matching
✔ Updating Records
✔ Deleting Records
✔ Employee & Department Database Queries
✔ Step-by-Step SQL Solutions
✔ Important VTU Question
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🎯 This Video is Useful For
✅ VTU 4th Semester Students
✅ BCS403 Database Management System
✅ Computer Science Engineering (CSE)
✅ Information Science Engineering (ISE)
✅ Semester End Examination (SEE)
✅ Internal Assessment (CIE)
✅ Previous Year Questions (PYQs)
✅ DBMS Lab Examination
✅ SQL Beginners
✅ Placement Preparation
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📘 Subject Details
📚 Subject: Database Management System (DBMS)
📝 Subject Code: BCS403
🎓 Semester: 4th Semester
🏛 University: Visvesvaraya Technological University (VTU)
📖 Module: Module 3
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📺 Complete DBMS Course Available
📌 Module 1 – Introduction to Database & ER Model
📌 Module 2 – Relational Model & Relational Algebra
📌 Module 3 – Normalization & SQL
📌 Module 4 – SQL, PL/SQL & Transaction Processing
📌 Module 5 – NoSQL Databases & MongoDB
📌 SQL Programs
📌 Previous Year Questions
📌 Important Questions
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