📘 DATABASE MANAGEMENT SYSTEM (DBMS) – COMPLETE NOTES 💻 SEE Computer Science | Class 10 📚 CDC New Curriculum – 2083

 

DATABASE MANAGEMENT SYSTEM (DBMS) – COMPLETE NOTES

DOWNLOAD PDF NOTES

SEE Computer Science | Class 10

CDC New Curriculum – 2083

Complete study notes covering the major concepts of Database Management System (DBMS) in a simple, organized, and exam-focused format.

Topics Covered:

• Database – Definition, Importance & Applications

• Manual and Computerized Database

• Data and Information

• DBMS – Features, Advantages & Disadvantages

• RDBMS

• Database Data Types

• Tables, Rows and Columns

• Field (Attribute) and Record (Tuple)

• Entity

• Primary Key, Foreign Key & Composite Key

• Database Relationships – 1:1, 1:M & M:N

• MySQL – Features, Advantages & Applications

• Relational Tables

• Query and Report

• MySQL Constraints

• DDL – CREATE, ALTER, DROP, TRUNCATE & RENAME

• DML – SELECT, INSERT, UPDATE & DELETE

• WHERE Clause & LIKE Operator

• SQL Queries and Practical Examples

• MySQL Installation and Basic Practical Tasks

• Important MCQs and Question-Answers

Useful for:

SEE preparation, class notes, revision, theory examinations, and practical preparation.

Prepared by: Deepak Shrestha

 🔥 99% of SEE students lose marks in Python File Handling because they memorize programs instead of understanding the concepts.

Here's the ultimate one-minute revision you should save before your exam. 📌

🐍 Python File Handling Cheat Sheet

📂 File Modes

✅ r → Read
✅ w → Write (Overwrite)
✅ a → Append (Add data)
✅ x → Create New File

🧠 Memory Trick:
R = Read | W = Wipe | A = Add | X = eXclusive Create

---

📖 Reading Files

read()       → Entire file
readline()   → One line
readlines()  → All lines (List)

---

✍️ Writing Files

write()       → One string
writelines()  → Multiple strings

---

⭐ Most Important Programs

✅ Create a text file

✅ Write data

✅ Append data

✅ Read the entire file

✅ Read the first line

✅ Read all lines

✅ Count characters

✅ Count words

✅ Count lines

✅ Search a word

✅ Copy one file into another

---

🚀 Remember These

Characters

len(data)

Words

len(data.split())

Lines

len(file.readlines())

Search

"Python" in data

---

📊 SEE Frequently Asked Differences

🔹 read() vs readline() vs readlines()

🔹 write() vs writelines()

🔹 w vs a

🔹 CSV vs Pandas

---

🚨 Common Mistakes

❌ Using w instead of a

❌ Forgetting close()

❌ Using len(data) to count words

❌ Forgetting split()

❌ Using read() to count lines

---

🎯 Final Exam Formula

📂 Open File

⬇️

📖 Read / Write

⬇️

🧮 Process Data

⬇️

❌ Close File

---

💙 If this helped, save this post now. You'll thank yourself the night before the SEE exam.

📌 Follow for more SEE Computer Science notes, Python programs, MCQs, handwritten revision sheets, and exam tips.

#SEE #SEE2083 #ComputerScience #Python #PythonProgramming #FileHandling #CSV #Pandas #Coding #LearnPython #Education #Students #ExamPreparation #Programming

🚀 Python CSV Module Mastered! 📊🐍

 🚀 Python CSV Module Mastered! 📊🐍

The CSV Module is one of the most important topics in SEE Computer Science (Python File Handling). If you can confidently write these programs, you're already ahead of many students. 💪

✅ Create a CSV file
✅ Write records using writerow()
✅ Read records using csv.reader()
✅ Append new records without deleting old ones
✅ Write multiple records using writerows()
✅ Display specific columns using indexes
✅ Understand file modes (r, w, a, x)
✅ Avoid common exam mistakes like forgetting newline=""

📌 Quick Memory Tricks

📝 writer() ➜ Writes data
📖 reader() ➜ Reads data

🗑️ w ➜ Wipe & Write
➕ a ➜ Add at the end

📄 writerow() ➜ One Row
📚 writerows() ➜ Many Rows

🎯 SEE Exam Tip:
Practice writing every program without looking at your notes. In the exam, syntax matters just as much as the logic.

The next stop is 🐼 Pandas, where filtering and analyzing CSV data becomes much simpler.

📚 Keep practicing. Every program you write today is one less mark you lose tomorrow.

#Python #CSV #PythonProgramming #FileHandling #SEEComputerScience #SEE2083 #SEEExam #ComputerScience #Coding #LearnPython #Students #Programming #Education

🚀 🐼 Pandas Complete for SEE Computer Science 2083 | One-Shot Revision!

 🚀 🐼 Pandas Complete for SEE Computer Science 2083 | One-Shot Revision!

Still confused about Pandas? Don't worry! This complete revision covers everything you need for the SEE exam in one place. 📚💻

✅ What is Pandas?
✅ DataFrame Explained
✅ Read CSV Files
✅ Display Records
✅ Display Selected Columns
✅ Filter Records
✅ Salary > 75,000 Program
✅ Gender = 'M' & Computer > 85 Program
✅ Save Data to Another CSV (to_csv())
✅ index=False Explained
✅ Common Mistakes
✅ SEE Important Programs
✅ Last-Minute Revision Notes

🎯 Perfect for:
✔ SEE Class 10 Students
✔ Board Exam Preparation
✔ Last-Minute Revision
✔ Beginners Learning Python

💡 Save this post so you can revise before your exam.
📌 Share it with your classmates. Someone in your group chat is definitely still confusing = with ==. Computers are unforgiving like that.

📖 Happy Learning!

#SEE2083 #SEEComputerScience #Class10 #ComputerScience #Python #Pandas #CSV #FileHandling #PythonProgramming #ExamPreparation #StudyNepal #NepalEducation #SEERevision #LearnPython #BoardExam