MongoDB CRUD Operations - Student Database
In this assignment, we explored MongoDB CRUD (Create, Read, Update, Delete) operations using a simple students collection.
Schema
Each student document follows this structure:
{
"student_id": "S001",
"name": "Santhosh",
"age": 20,
"department": "CSBS",
"year": 2,
"cgpa": 9
}
Tasks Performed
🔹 Create
Inserted 5 student records using insertMany().
🔹 Read
- Display all student records
- Find students with CGPA > 8
- Find students from CSE / CSBS department
🔹 Update
- Updated CGPA of a student (
S002) - Increased year of all 3rd year students by 1
🔹 Delete
- Deleted one student by
student_id - Deleted all students with CGPA < 7.5
Output
Screenshots were taken from MongoDB Atlas for execution results.
Finally, the collection was exported in JSON/CSV format for submission.
✅ This assignment gave us hands-on practice with MongoDB’s document model and CRUD operations.
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