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How update the _id of one MongoDB Document?

... You cannot update it. You'll have to save the document using a new _id, and then remove the old document. // store the document in a variable doc = db.clients.findOne({_id: ObjectId("4cc45467c55f4d2d2a000002")}) // set a new _id on the document doc._id = ObjectId("4c8a331bda76c55...
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LAST_INSERT_ID() MySQL

I have a MySQL question that I think must be quite easy. I need to return the LAST INSERTED ID from table1 when I run the following MySql query: ...
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Check if key exists and iterate the JSON array using Python

... import json jsonData = """{"from": {"id": "8", "name": "Mary Pinter"}, "message": "How ARE you?", "comments": {"count": 0}, "updated_time": "2012-05-01", "created_time": "2012-05-01", "to": {"data": [{"id": "1543", "name": "Honey Pinter"}]}, "type": "status", "id": "id_7"}""" def getTa...
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Get specific object by id from array of objects in AngularJS

I have a JSON file containing some data I d like to access on my AngularJS website. Now what I want is to get only one object from the array. So I d like for example Item with id 1. ...
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MySQL, update multiple tables with one query

... Take the case of two tables, Books and Orders. In case, we increase the number of books in a particular order with Order.ID = 1002 in Orders table then we also need to reduce that the total number of books available in our stock by the same number in Books table. UPDATE B...
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How to use JavaScript variables in jQuery selectors?

How do I use JavaScript variables as a parameter in a jQuery selector? 6 Answers 6 ...
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How do I get jQuery to select elements with a . (period) in their ID?

Given the following classes and controller action method: 8 Answers 8 ...
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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?

Can anyone explain how to implement one-to-one, one-to-many and many-to-many relationships while designing tables with some examples? ...
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How to remove item from list in C#?

I have a list stored in resultlist as follows: 8 Answers 8 ...
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How to select html nodes by ID with jquery when the id contains a dot?

... @Tomalak in comments: since ID selectors must be preceded by a hash #, there should be no ambiguity here “#id.class” is a valid selector that requires both an id and a separate class to match; it's valid and not always total...