BCA-104N · Introduction to Database System
Unit 4
Structured Query Language (SQL) & Table Management
0% read Sign in to save
Unit 4 Learning Hub
Structured Query Language (SQL) & Table Management
Official MJPRU BCA Unit 4: Structured Query Language (SQL) & Table Management for BCA-104N (Introduction to Database System).
Syllabus Topics:SQL Language Architecture: DDL (Data Definition Language), DML (Data Manipulation Language), DCL, TCLData Types in SQL: Numeric, Character (CHAR/VARCHAR), Date, Time, BooleanDDL Commands: CREATE TABLE, ALTER TABLE (ADD, MODIFY, DROP Column), DROP TABLE, TRUNCATEConstraints in SQL: PRIMARY KEY, UNIQUE, NOT NULL, CHECK, DEFAULT, FOREIGN KEY REFERENCESDML Commands: INSERT INTO, UPDATE SET WHERE, DELETE FROM WHERESQL Queries: SELECT Clause, WHERE Filtering, ORDER BY, DISTINCT, LIKE Wildcards, BETWEEN, INAggregate Functions: COUNT, SUM, AVG, MIN, MAX & GROUP BY, HAVING Clause FilteringSQL Joins: Inner Join, Left Outer Join, Right Outer Join, Full Outer Join, Cross JoinSubqueries: Nested Queries, Correlated Subqueries & Table Views (CREATE VIEW)
1
Card 1 of 5·+0 XP earned
Introduction to Computers & The IPO Cycle
💻
Topic 1 · The foundation of modern computing
Introduction to Computers & The IPO Cycle
+25 XP
🐾
Ready to master this concept? Give it a quick read & tap the check!
💡 The Big Picture:A computer is an electronic system that takes raw data as Input, processes it under programmed logic, and produces meaningful Information as Output.
🍪 Everyday Analogy:Think of baking cookies: Flour & Sugar (Input) ➔ The Oven (Processing) ➔ Warm Delicious Cookie (Output)! 🍪
Key Exam Takeaways
- ·Data = Raw, unprocessed facts without context (e.g. 42, 'apple').
- ·Information = Structured data with meaning (e.g. 'Temperature: 42°C').
- ·Hardware is what you can touch; Software is the instructions running inside.
Instant Knowledge Check
+20 XP
Which of the following represents unprocessed raw facts?
1/5