Lec-8: What is CANDIDATE KEY and PRIMARY key | Full Concept | Most suitable examples | DBMS

Lec-56: SQL Queries and Subqueries (part-2) | 2nd Highest Salary | Nested Queries | DBMS

Lecture 19 SQL ALTER command in DBMS Hindi

56. ALTER TABLE for adding one column without constraints in SQL (Hindi)

[SARAL GYAN] : E-R Model to Relational Model Mapping