WebBasic and Unique Indexes With Duplicate Key Patterns Starting in MongoDB 5.0, basic and unique indexes can exist with the same key pattern. This duplication in key patterns allows for adding a unique index to already indexed fields. In this example: Create a basic index with the key pattern { score : 1 } and insert three documents. Web10 okt. 2024 · 错误代码: File “D:\Aanconda_install\lib\site-packages\pymongo\helpers.py”, line 198, in _raise_last_write_error raise DuplicateKeyError (error.get ("errmsg"), 11000, error) 1 pymongo.errors.DuplicateKeyError: E11000 duplicate key error collection: sjjy.sjjy index: id dup key: { : ObjectId (’’) } 主要原因是同时插入数据造成 _id 重复 …
E11000 duplicate key error collection - Working with Data
Web27 mrt. 2015 · My understanding is that update with upsert:true on a single document is an atomic operation so this should never result in a duplicate key error, especially not on … Web1 aug. 2024 · remove index classroom.class_code to resolve this Brad_Palmer (Brad Palmer) July 27, 2024, 9:43am #4 It looks like you might have some documents in the collection that have a null value for classroom.class_code. In this case it would be a duplicate key as the index value would also be null. grapes carbs per serving
node.js - MongoDB error E11000 duplicate key error collection …
Web27 jun. 2024 · It throws a duplicate key error, E11000 duplicate key error collection: sample.collection index: members.userId_1 dup key: { members.userId: null } I think it should work because we have added a partial filter type by string, Is there any other option to do this scenario? steevej (Steeve Juneau) June 21, 2024, 2:58pm #2 Web3 jun. 2024 · You can connect the database with studio, go to appropriate collection, and find the field where duplicate error is pointing to. At the bottom, deselect Unique and … Web8 apr. 2024 · Your ORM, Mongoose, creates an empty array when you save a new instance. Mongo considers undefined/null a unique value so you can't have two instances that … chipping sodbury town football club