#2、查 show dbs #查看所有数据库,相当于Mysql的show databases #空数据库不会显示在列表中比如默认创建的数据库config, 要显示,就必须在库中插入数据 db #查看当前所在库 #3、删 use config #先切换到要删的库下 db.dropDatabase() #删除当前库 集合操作 #1、增 use db1#选择所在数据库 #方式一: db....
vardb = client.GetDatabase("sample_guides"); varcoll = db.GetCollection<Comet>("comets"); 3 Delete specific documents in thecometscollection. The following example illustrates using a query filter to delete documents where theirorbitalPeriodis greater than 5 and less than 85. ...
db.runCommand({"dropDatabase": 1}) 删除当前数据库【或者使用,db.dropDatabase()】 deleteOne() 和 deleteMany() remove() 方法已经过时了,现在官方推荐使用 deleteOne() 和 deleteMany() 方法。 如删除集合下全部文档: db.inventory.deleteMany({}) 删除 status 等于 A 的全部文档: db.inventory.deleteMa...
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Contains response data for the deleteMongoDBDatabase operation. TypeScript Copy type MongoDBResourcesDeleteMongoDBDatabaseResponse = MongoDBResourcesDeleteMongoDBDatabaseHeaders English (Canada) Your Privacy Choices Theme Manage cookies Previous Versions Blog Contribute Privacy Terms of Use Tradem...
use DATABASE_NAME(数据库名称) 删除操作: db.dropDatabase() 例子: 三、创建删除集合 创建集合: db.createCollection(name,options) name:集合名称 options:指定有关内存大小及索引的选项 当插入一些数据时,MongoDB 会自动创建集合。 查看已有集合:
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....
123456是密码，211.159.185.88是地址，27017是端口号 client = MongoClient('mongodb://se7en521...
BeginDeleteMongoDBDatabaseAsync BeginUpdateMongoDBCollectionThroughputAsync BeginUpdateMongoDBDatabaseThroughputAsync CreateUpdateMongoDBCollectionAsync CreateUpdateMongoDBDatabaseAsync DeleteMongoDBCollectionAsync DeleteMongoDBDatabaseAsync GetMongoDBCollectionAsync GetMongoDBColle...
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....