Single vs First vs Defaults in Entity Framework Core / LINQ

We will learn the difference between Singe / First and Default in Entity Framework Core
It is meant for anyone in .NET domain to improve their coding knowledge.
If you have some examples you want to share with the community you can send them here forms.gle/FUuLB7bRxsXgqiWH6
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[@nickolaki]

These simple kinda examples are very helpful.

[@AztecPyramid]

simple but complete explanation of the differences. thank you.

[@imranchughtai5973]

great job sir very simple explanation you saved my hours

[@manooj8502]

lot of love sir from nepal

[@sivakaran8233]

nice, clear explanation

[@ishaz11]

Thank you for this

[@Shakti_Singh_Om]

Cool

[@broadshare]

Even for experienced .NET developers its refreshing, thank you.

[@harvey_04]

Porfect

[@rahulawasthi886]

I have a doubt regarding publisher subscriber pattern. How to publish noyification to subsribers when a change is the publisher content?

[@tibba69]

I really wish we could use EF Core but as far as I know, it does not support the database my company is stuck using - IBM for i or DB2 iSeries (or whatever it’s called these days).
To make it worse we are stuck on version v5r4! 😢
Does anybody know if EF Core can be used for this as I haven’t been able to find anything for years.

[@ranaabushammalh2152]

Can you extend the special offer on this course RESTful Web API - The Complete Guide (.NET7 API) Part 1 in Udemy ...for two days because I wanted to buy it but was not able to buy it in the previous days. Please, I have bought .NET Core MVC - The Complete Guide 2023 course:(((

[@AnisBOUTEKADJIRETOff]

how about Find()