CentralReach leveraged MongoDB’s document model to aggregate the company’s diverse forms of information from assessments to clinical data collection, so the company could build rich AI-assisted solutions on top of its database. Meanwhile, MAAP partners helped CentralReach to design and optimize...
You can use$mergeto move data from a time series collection to another collection. distinct Command Due to the unique data structure of time series collections, MongoDB can't efficiently index them for distinct values. Avoid using thedistinctcommand ordb.collection.distinct()helper method on time...
To remove one or more objects that are selected for migration, click the objects in theSelected Objectssection and then click theicon to move the objects to theSource Objectssection. Note If you need to perform incremental migration operations at the database or colle...
keys_collection_cache.cpp keys_collection_cache.h keys_collection_cache_test.cpp keys_collection_client.h keys_collection_client_direct.cpp keys_collection_client_direct.h keys_collection_client_sharded.cpp keys_collection_client_sharded.h keys_collection_document.idl keys_collection_document_test.cpp ...
keys_collection_cache.cpp keys_collection_cache.h keys_collection_cache_test.cpp keys_collection_client.h keys_collection_client_direct.cpp keys_collection_client_direct.h keys_collection_client_sharded.cpp keys_collection_client_sharded.h keys_collection_document.cpp keys_collection_document.h key...
In other words, a single collection in the MongoDB database can hold numerous documents, each with a distinct amount of Fields, Content, and Size. It is not required that one document be comparable to another, as is the case with Relational Databases. MongoDB provides customers with a lot...
The db.collection.createIndex() method is used to builds an index on a collection.Syntax:db.collection.createIndex(keys, options) Parameters:NameDescriptionRequired / OptionalType keys A document that contains the field and value pairs where the field is the index key and the value describes ...
方法: MongoDB中的集合查询(获取一组文档中某个字段的不同值列表) 运用方法:DBCollection对象方法中的 distinct() 语句: 语句结构:distinct(key,[query]) key字符串,指定获取哪个字段的不同值;query:包含标准查询选项的对象,指定了要从哪个文档
The capitalization of database names and collection names in the destination instance. By default,DTS default policyis selected. You can select another option to ensure that the capitalization of object names is the same as that of the source or destination database. For more informa...
Now that we've created our Azure Cosmos DB account, created an Azure Blob Storage account, and move our MongoDB backup files to that account its time to take care of our Azure Database Migration Service.If you haven't done so, open a browser window and sign in to https://porta...