[fifticon]

I concur with these. I see colleagues who use EF as 'black magic', who postpone or fear looking into what is happening under the hood. Because they lack insight into what it really does, they regularly cause horrendous queries to happen. My pet peeve with EF LINQ is, that your c# is not really c#, so you may write queries that compile silently, but fail to execute on runtime because the C# cannot be translated to SQL.

[Antshockey]

Funnily, one of my pet peeves is people worrying about the SQL Generated from EF Linq. If you care that much about it I think you should just be writing the SQL by hand.

[pc86]

I might even go a step farther - you shouldn't care. It's the equivalent of caring whether or not your generated HTML or compiled IL or Assembly "looks nice."

If the SQL is performant and it returns the expected data, that is good enough for 99.9% of cases.

[fabian2k]

There are cases where you have to care, e.g. the difference between AsSingleQuery() and AsSplitQuery() in EF Core. This option only affects what kind of queries EF Core will create to perform the same job, but it can have pretty significant implications on performance in some cases, and it can affect the consistency guarantees you get for your results.

[hackerfromthefu]

The abstraction is great, until it breaks.

In this case, with ORMS, even good ones, this happens often enough in production that to actually master the tool you do need to care.