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mongodb aggregate group

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Annoyed Antelope answered on February 25, 2021 Popularity 10/10 Helpfulness 4/10

answer mongodb aggregate group

related mongodb group by having

related aggregate method, mongodb, group

related $group in mongodb

mongodb aggregate group

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#equivalent of the following SQL instruction:
# SELECT COUNT(*) FROM Table
# GROUP BY your_field
query = db.collection.aggregate([
    { 
        "$group": {
            "_id": "$your_field", #GROUP BY your_field
            "total": {"$sum":1}   #COUNT(*)
        }
    }
])

Popularity 10/10 Helpfulness 4/10 Language python

Source: Grepper

Tags: aggregate group mongodb python

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Contributed on Feb 25 2021

Annoyed Antelope

0 Answers Avg Quality 2/10

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mongodb group by having

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#It's the equivalent of the following SQL instruction:
# SELECT COUNT(*) FROM Table
# GROUP BY your_field
# HAVING COUNT(*) > N
query = db.collection.aggregate([

    { 
      "$group": { "_id": "$your_field", #GROUP BY your_field
    			"count": {"$sum":1} }   #COUNT(*)
    },
    
    { "$match": { "count": { "$gt": N } } } #HAVING COUNT(*) > N
])

Popularity 10/10 Helpfulness 6/10 Language python

Source: Grepper

Tags: group-by group-b

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Contributed on Feb 25 2021

Annoyed Antelope

0 Answers Avg Quality 2/10

aggregate method, mongodb, group

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# Encontrar el valor máximo para el ancho del pétalo - Opción 3
agg_result = Collection.aggregate([
    {"$group":
              {   "_id":"_id",
                  "std": { "$stdDevPop": "$petalWidth" }
              }
    }
  ])

Popularity 9/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: aggregate aggr

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Contributed on Dec 21 2022

Xenophobic Xenomorph

0 Answers Avg Quality 2/10

$group in mongodb

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{
"_id":"26/04/2015 09:50",
"reservations":130,
"Event_types":[
   {
     "type":"Party",
     "events":[
        {
           "eventName":"After Party",
           "total_count":130,
           "by":[
              {
                 "siteName":"club8",
                 "countArray":[
                    {
                       "bucket":"default",
                       "value":40
                    }
                 ]
              },
              {
                 "siteName":"PostParty",
                 "countArray":[
                    {
                       "bucket":"1",
                       "value":70
                    },
                    {
                       "bucket":"2",
                       "value":20
                    }
                 ]
              }
           ]
        }
      ]
   }
 ]
}

Popularity 10/10 Helpfulness 1/10 Language whatever

Source: stackoverflow.com

Tags: mongodb

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Contributed on Dec 20 2022

Delightful Deer

0 Answers Avg Quality 2/10

mongodb aggregate group

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mongodb group by having

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$group in mongodb

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