我有这样的数据结构:{"_id":ObjectId("5c4404906736bd2608e30b5e"),"assets":[{"name":"xa","id":1},{"name":"xs","id":2}]},{"_id":ObjectId("5c4404906736bd2608e30b5f"),"assets":[{"name":"xa","id":3}]},{"_id":ObjectId("5c4404906736bd2608e30b5g"),"assets":[{"name":"xa","id":4},{"name":"xd","id":5},{"name":"xs","i
我正在尝试使用adminmongo在docker上访问我的mongo数据库.这是我的docker-compose.ymlversion:'3'services:mongo:image:mongovolumes:-~/data:/data/dbrestart:alwaysexpose:-6016adminmongo:image:mrvautin/adminmongoexpose:-1234links:-mongo:mongo当我执行docker-composeup时一切正常，adminmongo也返回给我:adminmongo_1_544d9a6f954c|adminMongo监听主机:
我有一个hero集合，其中每个hero文档如下所示:{_id:'the-name-of-the-hero',name:'NameofHero',(...),//otherpropertiestothisherorelations:[{hero:'the-id-of-another-hero',relationType:'trust'},{hero:'yet-another-id-of-another-hero',relationType:'hate'}]}relations.hero指向另一个英雄的_id。我需要获取更多相关英雄的信息，因此我使用聚合$lookup将每个英雄与“英雄”集
我在集合中有一个对象:{"id":"123","option":{"key":"one","value":"1"}}我可以这样找到对象:collection.find(BSONDocument("option"->BSONDocument("key"->"one","value"->"1")))但是，我需要的是能够仅通过值(示例中的“1”)找到对象，而不必指定整个子文档。有什么办法可以在Reactivemongo中实现吗？ 最佳答案 要按嵌入或嵌套文档中的字段进行查询，请使用点表示法:collection.find(BSONDocu
假设我有数据db=[{"make":"audi","year":"2018","url":"xyz.com/makes-2019-"},{"make":"audi","year":"2013","url":"abc.com/car/audi-2013"}]如果url中存在品牌或年份，假设我需要查询数据。例如。像这样db.cars.aggregate([{"$match":{"$or":[{"url":{"$regex":$model,"$options":"i"}},{"url":{"$regex":$year,"$options":"i"}}]}}])除了map-reduce之外，这
我恳请您帮助我完成这个查询，但我对MongoDB还不是很精通。我的数据结构如下所示:db.getCollection('EventDateValidation').find({}):/*1*/{"_id":ObjectId("5b7b2e3ae5e2100007717d81"),"_class":"com.overwatch.common.model.EventDateValidation","caseNo":"OW000002269122201810201135","loanNo":"000002269122","eventType":"BREACLETTR","validation
查询返回元素在其集合中的放置顺序，忽略初始数组的顺序。这会影响我们系统的功能。是否有任何额外的命令可以将其按正确的顺序排列？是否有可用的解决方法？下面是一个简单的例子:Collection1文档{"_id":ObjectId("5c781752176c512f180048e3"),"Name":"Pedro","Classes":[{"ID":ObjectId("5c7af2b2f6f6e47c9060d7ce")},{"ID":ObjectId("5c7af2bcf6f6e47c9060d7cf")},{"ID":ObjectId("5c7af2aaf6f6e47c9060d7cd"
我正在尝试查询我的Mongo数据库以显示某个集合中的所有值，并按某个键的所有值排序。例如，我有以下收藏:{"id":"1235432","name":"JohnSmith","occupation":"janitor","salary":"30000"},{"id":"23412312","name":"MathewColins","occupation":"janitor""salary":"32000"},{"id":"7353452","name":"DeppJefferson","occupation":"janitor""salary":"33000"},{"id":"342
我必须在使用填充时重命名字段的名称。constCategorySchema=newSchema({name:{type:String,unique:true},featured:{type:Boolean,default:true},image:String,active:{type:Boolean,default:true},subCategoryIds:[{type:Schema.Types.ObjectId,ref:'SubCategory'}]},{timestamps:true});exportdefaultmongoose.model('Category',Category
我有以下JSON[{"_id":"5c87e621257db42508007f3b","uuid":"8b03dba7-db96-40d0-8dd9-6a65efd6719a","user_answers":[{"profile_section_code":"MY_PROFILE","profile_question_code":"STANDARD_EDUCATION","selected_answer":["2"]},{"profile_section_code":"MY_PROFILE","profile_question_code":"ETHNICITY","selected_a
