secondary indexing
Lec-2: Introduction to DBMS (Database Management System) With Real life examples | What is DBMS
Lec-91: Primary Index With Example | GATE, PSU and UGC NET | DBMS
Lec-47: Union Operation in Relational Algebra | Database Management System
Lec-42: Introduction to Relational Algebra | Database Management System
Lec-71: Transaction States | Database Management System