KOACH SAHAB

SQL (Structured Query Language) is the standard language for interacting with databases. Here are the basic query examples you need to know, grouped by their function, assuming we have a table called Students

Theoretical Foundations: Relational Algebra & Calculus These are the theoretical languages used to formally define the operations on a relational database. They are the mathematical basis  for languages like SQL. Relational Algebra Relational Algebra is a procedural query language . This means it tells the system how  to get the result by specifying a sequence of operations. It consists of a set of fundamental operations that take one or two relations (tables) as input and pr

Here's a short excerpt for a DBMS blog post: "DBMS: The Silent Architect of Your Digital World" Ever marvel at how your favorite apps instantly pull up your data, whether it's your student grades or your latest online order? The magic behind it all is often a Database Management System (DBMS). Think of it as the ultimate digital librarian not just storing mountains of information, but organizing it, securing it, and making sure it's always ready for you.