单击Insert Document(连接)。 点击{}{} 图标,打开 JSON 视图。 将文档数组粘贴到文本输入框中。例如,以下输入会创建四个文档,每个文档包含三个字段: [ { "prodId": 100, "price": 20, "quantity": 125 }, { "prodId": 101, "price": 10, "quantity": 234 }, ...
documents.add(document); collection.insertMany(documents); System.out.println("文档插入成功");//检索所有文档/*** 1. 获取迭代器FindIterable<Document> * 2. 获取游标MongoCursor<Document> * 3. 通过游标遍历检索出的文档集合 **/FindIterable<Document> findIterable =collection.find(); MongoCursor<Documen...
MongoDB only creates the database when you first store data in that database. This data could be acollectionor adocument. To add a document to your database, use thedb.collection.insert()command. Shell xxxxxxxxxx 2 1 > db.user.insert({name:"Ada Lovelace", age:205}) ...
FindIterable<Document> documents = collection.find().skip(count).limit(pageSize);try(MongoCursor<Document> cursor = documents.iterator()) {while(cursor.hasNext()) { result.add(cursor.next()); } }longduration=System.currentTimeMillis()-beginTime; log.info("It takes {} ms to page from {}...
collectionNameMongoDB 資料庫中集合的名稱。Yes 範例: JSON {"name":"MongoDbDataset","properties": {"type":"MongoDbV2Collection","typeProperties": {"collectionName":"<Collection name>"},"schema": [],"linkedServiceName": {"referenceName":"<MongoDB linked service name>","type":"LinkedService...
1. collection mongodb是通过一个个collection来做数据存储的,可以类比关系型数据库的表。 2. 分片键 mongodb是通过分片键来对collection进行分区的,也就是通过分片键来决定一个document如何分布式存入collection中。分片键是每个存放在collection中的document都持续拥有的不可缺少的一个字段或多个字段的组合。 分片键有...
table collection 数据库表/集合 row document 数据记录行/文档 column field 数据字段/域 index index 索引 table joins 表连接,MongoDB不支持 primary key primary key 主键,MongoDB自动将_id字段设置为主键 通过下图实例,我们也可以更直观的了解Mongo中的一些概念: 云数据库操作步骤 创建组织 首先,创建一个组织,...
var result = EmployeeDatabase.RunCommand<BsonDocument>(@"{customAction: ""CreateCollection"", collection: ""Employee"", offerThroughput: 1000, shardKey: ""EmployeeId""}"); // Connect to the collection "Employee" and add two documents for "Marcos" and "...
type数据集的 type 属性必须设置为:MongoDbV2Collection是 collectionNameMongoDB 数据库中集合的名称。是 示例: JSON {"name":"MongoDbDataset","properties": {"type":"MongoDbV2Collection","typeProperties": {"collectionName":"<Collection name>"},"schema": [],"linkedServiceName": {"referenceName":...
To enable document expiration in a particular collection, you need to create atime-to-live (TTL) index. A TTL index is an index on the_tsfield with anexpireAfterSecondsvalue. Example: JavaScript globaldb:PRIMARY> db.coll.createIndex({"_ts":1}, {expireAfterSeconds:10}) ...