updateMany method in MongoDB - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to update all documents where age is greater than 25.

MongoDB

db.collection.updateMany({ age: { $[1]: 25 } }, { $set: { status: "active" } })

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Aeq

Bgt

Clt

Dne

Attempts:

3 left

💡 Hint

Common Mistakes

Using $lt which means less than.

Using $eq which means equal to.

The $gt operator means 'greater than', so it selects documents where age is more than 25.

2fill in blank

medium

Complete the code to set the field "verified" to true for all users with status "pending".

MongoDB

db.users.updateMany({ status: "[1]" }, { $set: { verified: true } })

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Aactive

Bdeleted

Cinactive

Dpending

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'active' which means already approved.

Using 'inactive' which means disabled.

We want to update users whose status is exactly "pending".

3fill in blank

hard

Fix the error in the updateMany query to increment the "score" field by 10 for all documents.

MongoDB

db.scores.updateMany({}, { $[1]: { score: 10 } })

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Ainc

Bpush

Cadd

Dset

Attempts:

3 left

💡 Hint

Common Mistakes

Using $set which replaces the field value.

Using $push which is for arrays.

The $inc operator increments a numeric field by the specified value.

4fill in blank

hard

Fill both blanks to update the "status" to "archived" for documents where "lastLogin" is less than 2020.

MongoDB

db.accounts.updateMany({ lastLogin: { $[1]: 2020 } }, { $[2]: { status: "archived" } })

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Alt

Bgt

Cset

Dinc

Attempts:

3 left

💡 Hint

Common Mistakes

Using $gt instead of $lt for the date comparison.

Using $inc instead of $set for updating a string field.

$lt means less than, so it selects documents with lastLogin before 2020. $set updates the status field.

5fill in blank

hard

Fill all three blanks to increment the "visits" by 1 for users with "role" equal to "member".

MongoDB

db.users.updateMany({ role: "[1]" }, { $[2]: { visits: [3] } })

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Amember

Binc

C1

Dset

Attempts:

3 left

💡 Hint

Common Mistakes

Using $set instead of $inc for incrementing.

Using a wrong role name.

We select users with role "member". Then we use $inc to add 1 to the visits field.