Improve description of single/split queries

[roji]

Introduce the distinction between cartesian explosion and the (less important) data duplication, and provide examples.

See dotnet/efcore#29665 for a discussion around this.

[KesavaSubhash]

Hy this is Subhash ...
I need to work with Data Loading of lazy, Eager and explicit .. Basically im confusing to prepare navigation properties in entity level ,
Here I have an Module like Pricelist with Four Foreign Keys how i can Prepare Navigation Properties .. , Here we consider Table names (Foreign keys tables) as A ,B,C ,D Main table is PriceList

[roji]

@KesavaSubhash the documentation on the different types of loading (eager, explicit, lazy) is here. You should generally default to using eager loading with Include (in single or split query mode) unless you have some specific requirements; for example, you can use explicit loading if you don't know which dependents you need at the point where you load your principal (this is generally rare). Lazy loading should generally be avoided.

If you have further questions, please open a new issue with a description of what you're trying to achieve and specific questions.