Update Operations (original) (raw)

What is the purpose of update operations in MongoDB?

• Modify existing documents

Which method updates only one matching document?

Which method updates multiple documents?

What does replaceOne() do?

Which operator is commonly used with update operations?

What happens if no document matches updateOne()?

Which method should be used to update all matching records?

What happens if you use updateOne() without $set?

• Only specific fields update
• Entire document is replaced

Which method is best for changing only one field in multiple documents?

Which method ensures only one document is fully replaced?

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