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$ceil
New from version 4.0
The $ceil operator in Amazon DocumentDB, as in MongoDB, rounds a number up to the nearest integer. This is useful when you need to perform mathematical operations on numeric fields and ensure the result is a whole number.
Parameters
Example (MongoDB Shell)
This example demonstrates how to use the $ceil operator to round up a numeric field.
Create sample documents
db.numbers.insertMany([
{ "_id": 1, "value": 3.14 },
{ "_id": 2, "value": -2.7 },
{ "_id": 3, "value": 0 }
])
Query example
db.numbers.aggregate([
{ $project: {
"roundedUp": { $ceil: "$value" }
}}
])
Output
{ "_id": 1, "roundedUp": 4 }
{ "_id": 2, "roundedUp": -2 }
{ "_id": 3, "roundedUp": 0 }
Code examples
To view a code example for using the $ceil command, choose the tab for the language that you want to use:
- Node.js
-
const { MongoClient } = require('mongodb');
async function example() {
const client = await MongoClient.connect('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false');
const db = client.db('test');
const collection = db.collection('numbers');
const result = await collection.aggregate([
{ $project: {
"roundedUp": { $ceil: "$value" }
}}
]).toArray();
console.log(result);
client.close();
}
example();
- Python
-
from pymongo import MongoClient
def example():
client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
db = client.test
collection = db.numbers
result = list(collection.aggregate([
{ '$project': {
"roundedUp": { '$ceil': "$value" }
}}
]))
print(result)
client.close()
example()