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creating unique index in mongoDB


creating unique index in mongoDB

By : divya B S
Date : November 22 2020, 03:03 PM
fixed the issue. Will look into that further You need to pass a DBObject to the ensureIndex() method.
code :
db.t.ensureIndex(new BasicDBObject("product_src",1))
db.t.createIndex(new BasicDBObject("product_src",1));


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Unique Index Error when creating non-unique index - SQL Server

Unique Index Error when creating non-unique index - SQL Server


By : user2188552
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , It turns out that I was able to figure this out on my own. I ran a DBCC CHECKTABLE on the table and there was an inconsistency. After that I ran it again with the REBUILD_REPAIR option and it fixed the primary key inconsistency.
Creating unique index in mongodb using mongoose

Creating unique index in mongodb using mongoose


By : Michael Donat
Date : March 29 2020, 07:55 AM
around this issue It's MongoDB that creates index for _id field, not Mongoose. If you want your ids to be unique, either ensure uniqueness on your side or don't specify _id field at all in the insert.
Default type of _id field is ObjectId. It's designed to be unique, so you can safely generate these ids in the app and send to the database.
mongodb creating unique index: significance of ": 1"

mongodb creating unique index: significance of ": 1"


By : user3625062
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Directly from the documentation:
MongoDB: Insert multiple documents into collection with unique index even if some violate the index

MongoDB: Insert multiple documents into collection with unique index even if some violate the index


By : Brooks Albrecht
Date : March 29 2020, 07:55 AM
Any of those help You can use the db.collection.insertMany() function with the parameter {ordered: false}. See the docs (near the bottom where they describe unordered inserts): https://docs.mongodb.com/manual/reference/method/db.collection.insertMany/
jenssegers/mongodb migrations for creating unique index on multiple fields

jenssegers/mongodb migrations for creating unique index on multiple fields


By : Kelsey Garner
Date : March 29 2020, 07:55 AM
wish helps you I need to create a Laravel migration for a unique key on multiple fields. The Mongodb command i want to map is something like this:
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