As I said earlier, a critical aspect is missing in your MongoDB and Mongoose videos, i.e., how to create and use joins between two tables. Join is a very important thing to know and creating join in MongoDB/Mongoose is a bit difficult. Therefore, you must include a video on Joins in this playlist. It's a must.
@@priyamganguly db.invoices.aggregate([ { $match: { customer_id: 123 // Replace with the customer's ID you're interested in } }, { $lookup: { from: "invoice_items", // Replace with your invoice items collection name localField: "_id", // Assuming _id is the unique identifier for invoices foreignField: "invoice_id", // Assuming this field links invoice items to invoices as: "items" } } ]);
@@skzahirulislam2820: And even the JSON-type document uses the table concept of RDBMS. Consider showing an invoice of a customer with all the invoice items. How'd you do that without the concept of join?
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There is not a single day of mine is passing with out watching nd practising what u r teaching in ur videos
.
same here
I enjoed every bit..thank you so much Thapa ji
very very informative and easy to understand video..
Learnt a lot in mongoDB and mongoose. Thanks a lot man
I created blinkit clone using mern from watching your videos 😃
As I said earlier, a critical aspect is missing in your MongoDB and Mongoose videos, i.e., how to create and use joins between two tables. Join is a very important thing to know and creating join in MongoDB/Mongoose is a bit difficult. Therefore, you must include a video on Joins in this playlist. It's a must.
bro in this join doesn't needed
@@HanFelix369: Then how will you show the invoice of a customer with all the invoice items from the documents of MongoDB?
@@priyamgangulymongodb is not a table it is an json type document
@@priyamganguly
db.invoices.aggregate([
{
$match: {
customer_id: 123 // Replace with the customer's ID you're interested in
}
},
{
$lookup: {
from: "invoice_items", // Replace with your invoice items collection name
localField: "_id", // Assuming _id is the unique identifier for invoices
foreignField: "invoice_id", // Assuming this field links invoice items to invoices
as: "items"
}
}
]);
@@skzahirulislam2820: And even the JSON-type document uses the table concept of RDBMS. Consider showing an invoice of a customer with all the invoice items. How'd you do that without the concept of join?
Sir kindly create MERN project with React js, and also make video on Redux please
Waiting for next video 😍!
thanks, well expalined!
Thanx a lot vinod sir...
How to store data from html form to mongodb using express js ispe video upload karo please
Please make videos on socket.io js library
*_FIRST LIKE, COMMENT_*
Yes Brother 😊 congrats 🏅
Awesome video , make video on asp.net using c#
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Awesome
Thank you ❣️
Nice tutorial
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we can also us express validator it is more easy and validator(value) if else method id not required simple isEmail() method is enough.
Hello bro, please make Haml and SCSS Tutorial video. HTML & SCSS tutorial is everywhere in YT but HAML and SCSS Tutorial no one in YT.
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bhaiya react page ko express or node js ke sath connect kyse krte h please upload vieo on this
Ty please make it
Please make a video on "mongoose in one video"
Thanks Sir :)
how to shows exact error message not a whole log
Bhai videos kaise upload aur retrieve krenge
Nice video 😊😊
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Sir ab to crud project start kar do or login sign up bala project start please
In se admin panel kase banega without react
Please make video on email verification with node js
From where that "Validate" function is being called..?
inbuilt in mongoose
bhaiya unique:true is not working dont know why?
can you please help me on that?
I'm trying to validate the mobile number but throw this error: "ValidatorError: Expected string but received a number."
use - type:Number instead of type:String
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