1、db.collection.deleteOne() 1.1 作用 从集合中删除单个文档 1.2 语法: db.collection.deleteOne( <filter>, { writeConcern: <document>, collation: <document>, hint: <document|string> // Available starting in MongoDB 4.4 } ) 1.3 参数说明: 范围类型描述 filter document 使用查询运算符指定删除...
The db.collection.findOneAndDelete() method in MongoDB finds a single document that matches the filter, deletes it, and returns the deleted document. This is particularly useful when you want to retrieve and remove a document in a single operation, ensuring atomicity. Syntax: db.collection.find...
Delete by Query: The most common method for deleting data in MongoDB is by using thedeleteMany()method with a query that matches the documents to be deleted. ```javascript db.collection.deleteMany({ field: value }); 1. 2. 2. **Delete by ID**: If you know the specific `_id` of ...
The following operation uses a write concern document inside of the db.collection.findOneAndDelete() method with options: w:1 to requests acknowledgment that the write operation has propagated to the standalone mongod or the primary in a replica set. j:true to tell the number of MongoDB inst...
, currentop output, and logs . this option is available since mongodb 4.4 and will result in an exception at execution time if specified for an older server version. new in version 1.13 . hint string|array|object the index to use. specify either the index name as a string or the index...
1、db.collection.deleteOne() 1.1 作用 从集合中删除单个文档 1. 1.2 语法: db.collection.deleteOne( <filter>, { writeConcern: <document>, collation: <document>, hint: <document|string> // Available starting in MongoDB 4.4 } ) 1.
db.collection.findOneAndDelete(<filter>,{projection:<document>,sort:<document>,maxTimeMS:<number>,collation:<document>}) ThefindOneAndDelete()method takes the following parameters: ParameterTypeDescription filterdocument The selection criteria for the update. The samequery selectorsas in thefind()method...
To delete a record, or document as it is called in MongoDB, we use the deleteOne() method.The first parameter of the deleteOne() method is a query object defining which document to delete.Note: If the query finds more than one document, only the first occurrence is deleted....
Starting in MongoDB 6.0, you see afullDocumentBeforeChangedocument with the fields before the document was changed (or deleted) if you perform these steps: Enable the newchangeStreamPreAndPostImagesfield for a collection usingdb.createCollection(),create, orcollMod. ...
The operations group for this extension method. mongoUserDefinitionId String The ID for the User Definition {dbName.userName}. resourceGroupName String The name of the resource group. The name is case insensitive. accountName String Cosmos DB database account name. ...