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Create an index in Mongodb

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Careful Chamois answered on August 29, 2020 Popularity 10/10 Helpfulness 2/10

answer Create an index in Mongodb

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Create an index in Mongodb

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> db.col1.save({'colors': ['red','blue']})
> db.col1.ensureIndex({'colors':1})

> db.col1.find({'colors': 'red'})
{ "_id" : ObjectId("4ccc78f97cf9bdc2a2e54ee9"), "colors" : [ "red", "blue" ] }
> db.col1.find({'colors': 'blue'})
{ "_id" : ObjectId("4ccc78f97cf9bdc2a2e54ee9"), "colors" : [ "red", "blue" ] }

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Source: dev.to

Tags: mongodb whatever

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Contributed on Jul 04 2021

Careful Chamois

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how create an index mongodb

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db.collection.createIndex({age:1}) //single field asc index on age field
db.collection.createIndex({firstName:1,lastName:-1})//compound index on firstName asc and lastName desc
db.collection.createIndex({locations:1}) //given locations is an array then a multikey index will be created

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: docs.mongodb.com

Tags: javascript j

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Contributed on Aug 29 2020

Kirk-Patrick Brown

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create index mongodb

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//Create a Single-Key Index if All Queries Use the Same, Single Key
db.products.createIndex( { "category": 1 } )
// Create Compound Indexes to Support Several Different Queries
db.products.createIndex( { "category": 1, "item": 1 } )
//Index Use and Collation
db.myColl.createIndex( { category: 1 }, { collation: { locale: "fr" } } )

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: www.mongodb.com

Tags: javascript j

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Contributed on Jun 21 2022

Rasel Ahmed

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pymongo create index

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collection.create_index([('field_i_want_to_index', pymongo.TEXT)], name='search_index', default_language='english')

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Source: stackoverflow.com

Tags: pymongo

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Contributed on Apr 27 2022

Tristan Biny

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mongodb create index json

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{
	"v": 1,
	"unique": false,
	"key": {
		"name": 1
	},
	"name": "name_1",
	"ns": "test.users",
	"background": true
}

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 16 2022

Vishal

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Create an index in Mongodb

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