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see Getting Started with Amazon Web Services in China
(PDF).
$gte
The $gte aggregation operator compares two values and returns true if the first value is greater than or equal to the second, otherwise returns false.
Parameters
Example (MongoDB Shell)
The following example demonstrates using the $gte operator to check if students passed an exam.
Create sample documents
db.students.insertMany([
{ _id: 1, name: "Alice", score: 85 },
{ _id: 2, name: "Bob", score: 60 },
{ _id: 3, name: "Charlie", score: 72 }
]);
Query example
db.students.aggregate([
{
$project: {
name: 1,
score: 1,
passed: { $gte: ["$score", 70] }
}
}
]);
Output
[
{ _id: 1, name: 'Alice', score: 85, passed: true },
{ _id: 2, name: 'Bob', score: 60, passed: false },
{ _id: 3, name: 'Charlie', score: 72, passed: true }
]
Code examples
To view a code example for using the $gte aggregation operator, 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('students');
const result = await collection.aggregate([
{
$project: {
name: 1,
score: 1,
passed: { $gte: ["$score", 70] }
}
}
]).toArray();
console.log(result);
await 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['students']
result = list(collection.aggregate([
{
'$project': {
'name': 1,
'score': 1,
'passed': { '$gte': ['$score', 70] }
}
}
]))
print(result)
client.close()
example()