Document Structure Dot Notation Document Limitations Other Uses of the Document Structure Additional Resources MongoDB stores data records as BSON documents. BSON is a binary representation ofJSONdocuments, tho
Document Structure MongoDB documents are composed of field-and-value pairs and have the following structure: { field1: value1, field2: value2, field3: value3, ... fieldN: valueN } The value of a field can be any of the BSONdata types, including other documents, arrays, and arrays ...
The method updates the first document where the fieldais equal to3by adding a new fieldbto the document set to1.updateResultcontains information about whether there was a matching document to update or not. Remove a document Remove the document where the fieldais equal to3. ...
包含要可视化的数据的 MongoDB 集合或图表视图。有关连接和管理数据源的信息,请参阅数据源。 图表 映射到单个数据源的可视化。 仪表板 一个或多个图表的组合。 仪表盘是 Atlas Charts 的基础,因为您可以在其中创建和查看数据可视化。有关如何创建、管理和共享仪表盘的详细信息,请参阅仪表盘。
For situations that require atomicity of reads and writes to multiple documents (in a single or multiple collections), MongoDB supports multi-document transactions, also called distributed transactions.
See Document Structure. field path Path to a field in a document. To specify a field path, use a string that prefixes the field name with a dollar sign ($). firewall A system level network filter that restricts access based on IP addresses and other parameters. Firewalls are part of a...
A database can contain multiple collections, but a collection cannot span multiple databases. Likewise, a collection can contain multiple documents, but a document cannot span multiple collections. Studio 3Torganizes and presents data elements based on the MongoDB document structure, which makes it a...
MongoDB is a full-featured document store, sometimes referred to as a “NoSQL database” because it does not use SQL as a query interface or use relational database schema. In particular, the MongoDB server provides database instances. Each database contains zero or more collections. Each ...
MongoDB stores data records as BSON documents. BSON is a binary representation ofJSONdocuments, thoughit contains more data types than JSON. For the BSON spec, seebsonspec.org. See alsoBSON Types. Document Structure MongoDB documents are composed of field-and-value pairs and have the following...
In some cases, the number of connections between the applications and the database can overwhelm the ability of the server to handle requests. The following fields in theserverStatusdocument can provide insight: globalLock.activeClientscontains a counter of the total number of clients with active ...