python ruby-programming-language Smalltalk Vue.js Knockoutjs TypeScript JavaScript, OOPs JavaScript Angular 8,7,6,5,4 and 2 Interview Questions and Answers Angular 8,7,6,5,4 and 2 Interview Questions and Answers Angular 4 Angular 2 AngularJs 1.x NodeJs Perl Programming R Programming RequireJs Rust Programming Backbonejs closure programming language go-programming-language kotlin-programming-language
MongoDb aggregation if else

MongoDb aggregation if else

Syntax:
{$cond: [<expression>, <true>, <false>] }

Example as given below

db.Customers.aggregate([
    { "$project": {
        "name": 1,
        "customer": {
            "$cond": {
                "if": { "$eq": [ "$Age", 25 ] },
                "then": "YG",
                "else": {
                    "$cond": {
                        "if": { "$eq": ["$Age", 45]},
                        "then: "MYG",
                        "else": "SCZ"
                    }
                }
            }
        }
    }},
   { "$sort": { CreatedDate: 1 }}
]);


For more detail, go to  https://docs.mongodb.com/
ANIL SINGH

Hi there! Welcome to my blog. My name is Anil Singh. I'm a author of this blog. For more detail about me, kindly refer to this link..
My Blogs - http://code-sample.com and http://code-sample.xyz
My Books - Interview Questions and Answers Books- Get Your Book in 15+ Digital Stores Worldwide..

You Might Also Like
www.code-sample.com/. Powered by Blogger.
ASK Questions