Write data - ApsaraDB for MongoDB - Alibaba Cloud Documentation Center

This topic describes how to create a database and collection in an ApsaraDB for MongoDB instance and write data to the collection.

Prerequisites

You have successfully connected to the instance by following steps in Getting Started.

Create a database named test.
Enter the following command and click Execute.
```
use test
```
After the database is created, click the database name in Execution History to go to the database environment.
Create a collection namedmongo in the test database.
Enter the following command and click Execute. If the Execution Confirmation dialog box appears, click OK.
```
db.createCollection("mongo")
```
If the value of ok in the returned result is 1.0, the collection is created. Other values indicate that the creation failed.
Write two sets of data {"name": "test"} and {"count": "10"} to the mongo collection.
Enter the following command and click Execute. If the Execution Confirmation dialog box appears, click OK.
```
db.runCommand({insert: "mongo", documents: [{"name": "test"},{"count": "10"}]})
```
Query data in the mongo collection.
Enter the following command and click Execute.
```
db.getCollection("mongo").find({})
```

Create a database named test and switch to it.
```
use test
```
Create a collection named mongo in the test database.
```
db.createCollection("mongo")
```
When the value of ok in the returned result is 1.0, the collection is created. Other values indicate that the creation failed.

Write two sets of data {"name": "test"} and {"count": "10"} to the mongo collection.

db.runCommand({insert: "mongo", documents: [{"name": "test"},{"count": "10"}]})

Query data in the mongo collection.
```
db.getCollection("mongo").find({})
```