updateMany-Enterprise Mobile Application Studio(EMAS)-阿里云帮助中心

Updates multiple records in a collection.

Method signature

updateMany(filter: object, update: object, options?: object): Promise<MongoResult>

Request parameters

Field name	Type	Required	Description
`filter`	Object	Yes	The filter condition.
`update`	Object	Yes	The update document.
`options`	Object	No	Control

The options parameter is described as follows:

Field name	Type	Required	Description
`upsert`	Boolean	No	Specifies whether to insert the document if no match is found. The default is `false`.

Examples

Finds all records in the users collection where the name field is `jerry` and updates their age field to 10.

mpserverless.db.collection('users').updateMany({
    name: 'jerry'
}, {
    $set: 
    {
        age: 10
    }
})
.then(res => {})
.catch(console.error);

Finds all records in the users collection where the age field is greater than 18 and updates their `name` and `age` fields. Other fields remain unchanged. If no matching records are found, a new record {name: "Smith", age: 22} is inserted.
```
mpserverless.db.collection('users').updateMany({
    age: { $gt: 18 }
}, {
    $set: 
    {
        name: "Smith",
        age: 22
    }
}, {
    upsert: true
})
.then(res => {})
.catch(console.error);
```