All Questions
Tagged with mongodb-query mongodb-java
207
questions
0
votes
0
answers
53
views
Get document from MongoDB containing all fields but only includes the first element of an array field
Consider a MongoDB collection with documents as follows:
[{
"_id": "123",
"name": "Bob",
"age": 23,
"properties": ["a&...
- 23
2
votes
1
answer
336
views
MongoDB Java Driver Filter Integer Value of a String
I have MongoDB Document parameter of type "real" number but is represented in the DB as a string- e.g "cId"="200" instead of "cId"=200I have to query the DB for ...
- 1,124
6
votes
0
answers
340
views
Mongodb seems to be calling secondary when load increases
We have a mongo db replica set configuration with 1 primary and 2 secondaries. We have set the read preference to primary because one of our secondary is in a remote region and do not want read ...
- 2,222
0
votes
0
answers
674
views
Mongodb Java - Update document replacing a string in field
I am looking for a way to update a document replacing a substring of a field with another value.
For example, in my database i have the following field:
{
"_id": 1,
"value":...
0
votes
1
answer
246
views
With the Java Sync MongoDB Driver, how do you acertain the impact of an aggregation pipeline?
I have code in Java that performs an aggregation pipeline roughly:
List<Bson> aggUpdate = Arrays.asList(
match(...),
project(...),
lookup(...),
...
merge(...)
);
AggregateIterable&...
- 1,322
0
votes
1
answer
440
views
how to replaceOne document in MongoDb with Mongo database command
We have requirement to execute replaceOne operation with db.runCommand()
I checked list of commands from here, but i haven't found any command to replace one document.
Can someone please suggest us ...
- 505
0
votes
0
answers
354
views
Deletion of 1 million records with BulkWrite (DeleteManyModel) taking longer time
I have collection of 5 million records and every time data refresh happens , i wanted to delete Approx. 1 Million records. I am using below java code but it taking 30 Sec to delete. that is to high ...
- 313
0
votes
0
answers
300
views
MongoDB $geoNear in aggregation pipeline with the latest Java-Driver
Ok what I am trying to do is to find the proper way to add $geoNear in the aggregation pipeline. I have managed to do that, by adding a org.bson.Document at aggregation pipeline List, but I think ...
1
vote
1
answer
2k
views
Java MongoDB Projection
I am referring mongodb official page for projection where I came across following example where elements of array in subdocument is filtered:
https://docs.mongodb.com/manual/reference/operator/...
- 757
1
vote
1
answer
652
views
Query a stored procedure in mongodb using spring boot
I want to query a stored procedure in mongodb. I can query it using the command line tool but facing issue while querying using java.The piece of code(last two lines) that is throwing error is :
...
- 31
1
vote
1
answer
712
views
How to return only 1 field in MongoDB?
I'm trying to get the order number where a transactionId is equal to another variable I have in my code. My tolls.booths collection looks like this
In my code,
def boothsException = booths.find([ "...
- 69
0
votes
0
answers
369
views
Bucket aggregation and grouping in MongoDB Java driver
I do a short query to get some data from MongoDB using MongoDB Java Driver v 3.2. I am using Bucket and Unwind aggregation to make my work and result a bit meaningful. I made a filter based on a ...
- 11
0
votes
1
answer
164
views
how to keep special keys in filed of mongoDB documents and remove extra keys in there?
suppose that I have mongoDB collection that has documents like below
{
"_id" : ObjectId("5cb2dd4d378a8e2484e7bb69"),
"name":"ali",
"creator" : {
"name":"user1",
"code":2,
...
- 124
1
vote
2
answers
31
views
Optimize set and project operation
An intermediate output of our aggregation pipeline is as follows:
{ "_id" : { "$oid" : "..." }, "requestId" : "REQ4", "scrips" : ["3553", "5647", "1234", "0007"], "matched" : [{ "settlement" : "9001" ...
- 9,635
0
votes
1
answer
125
views
Filter output from multiple collections
Suppose we have an array of scrips as such:
["xxxxx1","xxxxx2","xxxxx3","xxxxx4"]
We have the following collections of scrips existing in db:
Executed:{"_id" : ObjectId("xxx"),"scrip" : "xxxxx1" }...
- 9,635