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Duplicate Foreign Key


Duplicate Foreign Key

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Lokesh Vij
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Comments posted to this topic are about the item Duplicate Foreign Key

~ Lokesh Vij

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kalyani.k478
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Nice QuetionSmile
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Thanks for the question.


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Iulian -207023
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Nice one, thank you

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rati0090
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gud 1 but it should be 253 as their is a limit of 253
Lokesh Vij
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rati0090 (10/23/2012)
gud 1 but it should be 253 as their is a limit of 253


This is the recommended maximum limit, but you can have infinite number of FK constraints in such scenario. BOL has specifically mentioned the reason for this recommended max limit: "Depending on the hardware configuration hosting SQL Server, specifying additional FOREIGN KEY constraints may be expensive for the query optimizer to process"

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Nice question - thanks

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I liked this question, as I wondered whether anyone would try running the sample code, and what would happen if they did (and I got it right comfortably!). Would you get to some kind of out of resource type scenario do you think?
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Good question. Thanks.
Lokesh Vij
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call.copse (10/23/2012)
I liked this question, as I wondered whether anyone would try running the sample code, and what would happen if they did (and I got it right comfortably!). Would you get to some kind of out of resource type scenario do you think?


:-) Hehe

Ah...atlast some one got the point why I intentionally pasted this sample code in the problem

~ Lokesh Vij

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Link to my Blog Post --> www.SQLPathy.com

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