mongodb query tool

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MongoDB Query Document

Tags: text cts rdb ted xxxxx BMS Find xxx MonMongoDB versus RDBMS Where statement comparison Operation format Example similar statements in an RDBMS Equals {} db.col.find({"by":"XXXX"}).pretty() where by = ‘XXXX‘ Less than { db.col.find({"likes":{$lt:50}}).pretty() where likes Less than or equal to { db.col.find({"likes":{$lte:50}}).pretty() where likes Grea

MongoDB nested Query

Today in the project encountered about MongoDB nested query, has not been contacted before, query the relevant data to record the results. The data in the MongoDB are as follows: > Db.customer.findOne () { "_id": ObjectId ("57636c8e35defe029962107e"), "_class": " Com.bu2trip.ticket.model.Customer ", " name

"MongoDB" Nested arrays query scheme

From:http://stackoverflow.com/questions/12629692/querying-an-array-of-arrays-in-mongodbDataDb.multiArr.insert ({"id": "fruit1", "Keys": [["Apple", "carrot", "banana"]]}) Db.multiArr.insert ({"id": "Fruit2", " Keys ": [[" Apple "," orange "," Banana "]]}) db.multiArr.find ({' Keys ': {$elemMatch: {$elemMatch: {$in: [' Carrot '}}}}) {" _ ID ": ObjectId (" 506555212AEB79B5F7374CBF ")," id ":" fruit1 "," Keys ": [[" Apple "," carrot "," banana "]]}db.multiarr.fin D ({' Keys ': {$elemMatch: {$elemMat

Basic MongoDB database query, command

Show DBS: Displays all local databases. That is, the local MongoDB database, which holds all databases under the folder of the database. Use TestDB: Using the TestDB database. This is the only way to use show collections, db. Userinfo.find ({}). Pretty (), DB. Userinfo.findone () command, otherwise you will not be sure of the database that is queried.Show Collections: Displays all the collections and collection in the specified database.Db. Userinfo.f

MongoDB Official C # driver in query condition queries usage

Http://www.cnblogs.com/viprx/archive/2012/09/06/2673693.htmlThe basic syntax for MONGODB conditional queries.Query.all ("name", "a", "B");//match array with multiple elementsQuery.and (Query.eq ("name", "a"), Query.eq ("title", "T"));//satisfy multiple conditions at the same timeQuery.eq ("name", "a");//equalsQuery.exists ("type", true);//Determine if key value existsQUERY.GT ("value", 2);//Greater Than >Query.gte ("Value", 3);//greater than or equal

monjadb--Eclipse-based MongoDB GUI Client tool (reprint)

Label:Original link http://www.oschina.net/question/12_59707 monjadb is a mongodb GUI client tool that provides intuitive MONGODB data management capabilities that support Windows/mac/linux.MONJADB is an Eclipse plugin, you must first install eclipse. Main Features: Use WYSIWYG Edit Json/table/tree Data Very flexible form Management "Action

MongoDB query syntax (greater than, less than, greater than or equal to, less than or equal to, etc.)

embedded objects Db.postings.find ({"Author.name": "Joe"}); Note that usage is author.name, just use one point. More detailed can see this link: dot notation As an example: > Db.blog.save ({title: "My first Post", Author: {Name: "Jane", Id:1}}) If we want to query authors name is Jane, we can do this: > Db.blog.findOne ({"Author.name": "Jane"}) If not, then you need to use the following sentence to match: Db.blog.findOne ({"Author": {"name": "Jane",

Java Operations MongoDB (advanced query)

()) {User user = new user (); User.parse (Find.next ()); SYSTEM.OUT.PRINTLN (user); }} public static void Main (string[] ArGS) {Userdao Userdao = new Userdao (); Userdao.query (); } Queryoperators class source code: Queryoperators.java/** * Copyright (C) 10gen Inc. * Licensed under the Apache License, Version 2.0 (the "License"); * You could not use this file, except in compliance with the License. * Obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * *

MongoDB-dbref (associated insertion, query, and deletion) instance depth

} > db.C.save(Ca) > var Ca={Bpid:[new DBRef('B',ObjectId("4e3f3de16266b5845052c036"))],value:6}> db.C.save(Ca) > db.C.find(){ "_id" : ObjectId("4e3f42f36266b5845052c03d"), "Bpid" : [ { "$ref" : "B", "$id" : ObjectId("4e3f3de16266b5845052c036") } ], "value" : 5 }{ "_id" : ObjectId("4e3f42f96266b5845052c03e"), "Bpid" : [ { "$ref" : "B", "$id" : ObjectId("4e

Mongodb fuzzy query and $ type usage

Mongodb uses fuzzy search and $ type for recent monitoring services. Because non-numeric data is collected, the monitoring charts cannot be displayed normally. Therefore, you need to find and delete the data, the developer then corrects the data inserted into the database from the source and no longer produces non-numeric content. The following is an example: Create test data: for (i1; i100; I ++ Mongodb us

MongoDB Group Query statistics eliminate duplicate records

of a lot of data count is 1,that is {"match": {"Count": {"GT": 2}}; failure, why?4, back up the first before deleting.Backup /usr/local/mongodb/mongodb-linux-x86_64-2.4.4--30000-d-c paymentinfo -o /home/backup/mongodb_pos_paymentinfo_3.txt5, start loop DeleteHere DS is a large result set, directly with Ds.result can get the result set inside the packet query ou

MongoDB query statement learning Abstract

After reading some information, I only need to know how to query and use MongoDB. This is enough. On the left is the MongoDB query statement, and on the right is the SQL statement. It is easy to use. DB. Users. Find () Select * from users DB. Users. Find ({"Age": 27}) Select * from users where age = 27 DB. Users. Find

Golang mongodb MgO Insert, query example

This is a creation in Article, where the information may have evolved or changed. Golang mongodb MgO Insert, query a small example, Golang still give me that feeling, than Nodejs write up comfortable. Package main import ("FMT" "Launchpad.net/mgo" "Launchpad.net/mgo/bson") type Mail struct {Id Bson. ObjectId "_id" Name string Email String} func Main () {//Connect to database session, err: = MgO. Dial ("127.

MongoDB Query Statement

Tags: DNA tst Day reg ODB ToString Moni CTI MatDb.getcollection (' Rpcmonitor_request '). Find ({"Requeststarttime":{$GT: Isodate ("2018-05-14 02:00"),$LT: Isodate ("2018-05-14 04:00")},"_id": ObjectId ("5af8fc5809d8d057f6a734e4")}) Db.getcollection (' Rpcmonitor_request '). Aggregate ([{$group:{requestcount:{$sum: 1},_ID:{"Requestday": {$dateToString: {format: "%y-%m-%d", Date: "$RequestStartTime"}},"Requesttypename": "$RequestTypeName","Requestmethodname": "$RequestMethodName"}}}]) Db.getcoll

MongoDB Learning-Advanced query [aggregation Group]

:34:50 GMT-400", "Price": 4.01}); Test the Group program code to be executedDb.runcommand ({"group": { "ns": "Stocks", " Key": "Day", "initial": {"Time": 0}, "$reduce": function ( Doc, prev) { if (Doc.time > Prev.time) { prev.price = Doc.price; Prev.time = Doc.time; } } Results after the execution {" retval": [ { "time": 0 } ], "Count": 5, "keys

A compound query of MongoDB using and and OR in Java

Conditions similar to: a=5 or (a=2 and b>3)Basicdblist endlist = new Basicdblist ();Basicdbobject forceend = new Basicdbobject ();Forceend.put ("status", 5);Basicdblist condlist = new Basicdblist ();Basicdbobject autoend = new Basicdbobject ();Condlist.add (New Basicdbobject ("status", 2));Condlist.add (New Basicdbobject ("EndTime", New Basicdbobject ("$lt", New Date ()));Autoend.put ("$and", condlist);Endlist.add (Forceend);Endlist.add (Autoend);Basicdbobject.put ("$or", endlist);A compound

MongoDB Official C # driver in query condition queries usage

Query.all ("name", "a", "B"), or//through multiple elements to match the array Query.and (Query.eq ("name", "a"), Query.eq ("title", "T"));//satisfy multiple conditions at the same time query.eq ("name", "a");//equals Query.exists ("type", true);//Determines whether the key value exists query.gt ("value", 2);//greater Than > Query.gte ("value", 3);//greater than or equal to >= query.in ("name", "a", "B");//Includes all values specified, you can specify different types of conditions and val

MongoDB Query Statement

Label:Read some information, corresponding only need to know how to query and use MongoDB for me, these are enough. On the left is the MONGODB query statement, and the right is the SQL statement. Compared with the use, very convenient. Db.users.find () SELECT * from Users Db.users.find ({"Age": +}) SELECT * from the us

MongoDB (Lesson 5 data query)

Tags: JSON it's equality function database query collection size block MONGO3.4.2 Data Query In the MongoDB database, the support for database queries is in place, with relational operations, logical operations, array operations, and regular operations. For the query operation core syntax for data: Db. Collec

MongoDB simple to use-query operation 3

": "Smells like Teen Spirit", "Tracklist.track": "1"})System returns:{"_id": ObjectId ("5aa4912953350e04ddbd6fa7"), "Type": "CD", "Artist": "Nirvana", "Title": "Nevermind", "tracklist": [{' track ': ' 1 ', ' title ': ' Smells like Teen Spirit ', ' Length ': ' 5:02 '}, {' track ': ' 2 ', ' title ': ' In Bloom ', ' lengt H ":" 4:15 "}]}{"_id": ObjectId ("5aa49fe653350e04ddbd6fac"), "Type": "CD", "Artist": "Nirvana", "Title": "Nirvana", "tracklist": [ {' track ': ' 1 ', ' title ': ' You Know ' is r

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