Data Definition Language (DDL), Data Manipulation Language (DML), and Transaction Control Language (TCL).
In the late 1990s, at a bustling tech firm in Mumbai, a young developer named found himself drowning in a sea of unorganized data
CREATE OR REPLACE FUNCTION get_dept_name(p_dept_id NUMBER) RETURN VARCHAR2 IS v_name VARCHAR2(100); BEGIN SELECT department_name INTO v_name FROM departments WHERE department_id = p_dept_id; RETURN v_name; EXCEPTION WHEN NO_DATA_FOUND THEN RETURN NULL; END;
: Topics are liberally sprinkled with practice exercises mapped to real-world applications. Logical Progression
: Well-formatted code snippets, diagrams, and flowcharts help visualize procedural logic. Supplementary Materials