How does DBMS work in an online MCA?

A DBMS organises and manages structured data. MCA students should understand tables, relationships, keys, transactions, normalisation and query processing because database knowledge appears in many software roles. This makes DBMS more valuable when it is supported by hands-on practice and a clear explanation of what you built. This point is specifically relevant to the DBMS aspect of MCA study. For this specific question about DBMS, the practical takeaway is to relate the concept to your own MCA learning goal. In other words, this guidance addresses: How does DBMS work in an online MCA?