1、查看帮助 db.yourColl.help(); 2、查询当前集合的数据条数 db.yourColl.count(); 3、查看数据空间大小 db.userInfo.dataSize(); 4、得到当前聚集集合所在的db db.userInfo.getDB(); 5、得到当前聚集的状态 db.userInfo.stats(); 6、得到聚集集合总大小 db.userInfo.totalSize(); 7、聚集集合储存空间大...
removeShard Removes a shard from a sharded cluster. When you run removeShard, MongoDB drains the shard by using the balancer to move the shard's chunks to other shards in the cluster. Once the shard is drained, MongoDB removes the shard from the cluster. ...
constmongoose=require('mongoose');constMongoRemove=require('als-mongo-remove');constPost=mongoose.model('Post',newmongoose.Schema({title:String,content:String,isDeleted:{type:Boolean,default:false},}));constComment=mongoose.model('Comment',newmongoose.Schema({postId:{type:mongoose.Schema.Types.Obj...
Further, we remove 1 from the scores array if it is there while we are using the $pull operator to perform all this remove operation.Use MongoDB $pullAll to Remove Element From an ArrayExample Code:// MongoDB version 5.0.8 > db.collection.update( { _id: ObjectId("62aae796f27219958a...
'object' does not contain a definition for 'id' 'System.Array' does not contain a definition for 'FirstOrDefault' 'System.Char' does not contain a property with the name 'ID'. 'System.Data.DataException' occurred in EntityFramework.dll ... while initializing the database Re: Connection ...
Ns_error_domain attribute only valid on enum/struct/union/class error building Realm 2.0.0 + Xcode 8 How save object in Mongodb with scala Inserting radio button input in the database One-To-One One-To-Many relation Finding distinct numbers in queue using java...
To remove a document based on its ID, you need to ensure that you pass the ID as a MongoID object rather than just a string: <?php $id='4b3f272c8ead0eb19d000000'; // will not work: $collection->remove(array('_id'=>$id),true); ...
- This is a modal window. No compatible source was found for this media. Reduce the array to a single element by repeatedly removing an element from any increasing pair Kickstart YourCareer Get certified by completing the course Get Started ...
Delete data from a collection in MongoDB using multiple conditions? Kickstart YourCareer Get certified by completing the course Get Started Print Page PreviousNext
public boolean deleteFile(Object id) { DBObject obj = new BasicDBObject(MongoDocument.MONGO_ID_KEY, id); if (pipelinefs.find(obj).size()==0) { return false; } pipelinefs.remove(obj); return true; } } 代码示例来源:origin: suninformation/ymate-platform-v2 @Override public void remove(...