CRUD Operations with PyMongo:

CRUD Operations with PyMongo:

CRUD (Create, Read, Update, Delete) operations are fundamental when working with databases. PyMongo, the official MongoDB driver for Python, provides methods to perform these operations seamlessly.

• Creating Documents: Creating documents involves inserting new data into a collection. PyMongo's insert_one() and insert_many() methods accomplish this.

# Insert a single document new_doc = {"name": "Ajit", "age": 28} collection.insert_one(new_doc) # Insert multiple documents new_docs = [ {"name": "Bob", "age": 32}, {"name": "Charlie", "age": 25} ] collection.insert_many(new_docs) 

• Reading Documents: Reading documents involves querying the database to retrieve data. PyMongo's find() method and other query methods allow you to retrieve data based on specific criteria.

# Find all documents all_docs = collection.find() # Find documents that match a specific condition young_people = collection.find({"age": {"$lt": 30}}) 

• Updating Documents: Updating documents allows you to modify existing data. PyMongo's update_one() and update_many() methods help you achieve this.

# Update a single document collection.update_one({"name": "Ajit"}, {"$set": {"age": 28}}) # Update multiple documents collection.update_many({"age": {"$lt": 30}}, {"$inc": {"age": 1}}) 

• Deleting Documents: Deleting documents involves removing data from a collection. PyMongo's delete_one() and delete_many() methods enable you to delete documents based on specified criteria.

# Delete a single document collection.delete_one({"name": "Alice"}) # Delete multiple documents collection.delete_many({"age": {"$gt": 30}})