MongoDB Community:源代码可用、免费使用且可自行管理的 MongoDB 版本 语法 deleteOne()方法采用以下形式: db.collection.deleteOne( <filter>, { writeConcern: <document>, collation: <document>, hint:<document|string> } ) deleteOne()方法使用以下参数: ...
New in version 1.13. hint string|array|object The index to use. Specify either the index name as a string or the index key pattern as a document. If specified, then the query system will only consider plans using the hinted index. This option is available since MongoDB 4.4 and will resu...
In a Node.js application, you can use the fs.rmdir() method to delete a directory.This method works asynchronously to remove the directory.If the directory is not empty, you can pass an optional recursive flag to delete all nested files and folders recursively.const fs = require('fs'); ...
To see the equivalent method in a MongoDB driver, see the corresponding page for your programming language: C#Java SyncNode.jsPyMongoShow all Definition db.collection.deleteOne() Removes a single document from a collection. Returns: A document containing: A boolean acknowledged as true if the ...
MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB Syntax ThedeleteOne()method has the following form: db.collection.deleteOne( <filter>, { writeConcern: <document>, collation: <document>, hint:<document|string> // Available starting in MongoDB 4.4 ...
如果未指定排序规则,但集合具有默认排序规则(请参阅db.createCollection()),则操作将使用为集合指定的排序规则。 如果没有为收集或操作指定排序规则,MongoDB 将使用先前版本中使用的简单二进制比较来进行字符串比较。 您不能为一个操作指定多个排序规则。例如,您不能为每个字段指定不同的排序规则,或者如果执行带排序...
This method is available in deployments hosted in the following environments: MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud Note This command is supported in all MongoDB Atlas clusters. For information on Atlas support for all commands, see Unsupported Commands. Mong...
如果未指定排序规则,但集合具有默认排序规则(请参阅db.createCollection()),则操作将使用为集合指定的排序规则。 如果没有为收集或操作指定排序规则,MongoDB 将使用先前版本中使用的简单二进制比较来进行字符串比较。 您不能为一个操作指定多个排序规则。例如,您不能为每个字段指定不同的排序规则,或者如果执行带排序...
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 key pattern as a document. If sp...