Oren Eini

aka Ayende Rahien

Oren Eini

CEO of RavenDB

a NoSQL Open Source Document Database

Get in touch with me:

oren@ravendb.net

+972 52-548-6969

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RavenDB Workshops - Deep dive into practical use of Document Data Modeling

Dec 15 2006

Linq Challange: HR Sample Model

time to read 1 min | 164 words

Okay, here is an interesting challange spurred by a a comment Alex has left on my previous post about linq.

Given this model, how would you build it using Linq for SQL (is it possible?) and Linq for Entities? I don't really care about the table layout (in other words, feel free to build something that can make your life easier), only that the model will be able to express the required complexity cleanly. A couple of notes, this is a temporal model, which include most of the usual database semantics (1:M, N:M, M:1).

The two gotchas for the OR/M implementation is that Rule is an abstract class that has several implementations, and that a rule is always attached to an entity (which may be of several urelated type Contract/Employee/Department, etc).

I would be interested to see how both Linq implementations handle this task...

Any takers?

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FUTURE POSTS

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RECENT COMMENTS

Dmitry, Yes, but this is _known_ to be a 64 bits system - since we are allocating 3GB (not possible in 64 bits). Note t...

By Oren Eini on Answer: What does this code do?
That's why it is a good idea to compare the return value of `write` to the buffer size. "size_t" can be 32-bit on some system...

By Dmitry on Answer: What does this code do?
There's a reason we miss `write_exact` and `read_exact` from the standard library. In fact, I am surprised the chunk is actua...

By Pyth0n on Challenge: What does this code do?
kpvleeuwen, I agree, unfortunately I don't have anyone to ask off the top of my head. Thanks, I fixed the headers.

By Oren Eini on Performance discovery: IOPS vs. IOPS
It could be interesting to reach out to storage firmware developers and ask what write patterns they think would be useful ex...

By kpvleeuwen on Performance discovery: IOPS vs. IOPS

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