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Scaled-down SQL


Scaled-down SQL

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Duncan Pryde
Duncan Pryde
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Comments posted to this topic are about the item Scaled-down SQL
bitbucket-25253
bitbucket-25253
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Excellent question and a more than excellent explanation of why the correct answer is what it is.

Thanks -

If everything seems to be going well, you have obviously overlooked something.

Ron

Please help us, help you -before posting a question please read

Before posting a performance problem please read
Duncan Pryde
Duncan Pryde
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bitbucket-25253 (3/20/2011)
Excellent question and a more than excellent explanation of why the correct answer is what it is.


Thanks - high praise indeed! I must mention though, that when trying to decide how to format the explanation, I came across this excellent post from SQL Kiwi (Paul White?) - which helped me considerably to come up with a clearer and more concise one than I would have done otherwise.

Cool
tilew-948340
tilew-948340
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I am sorry, but I realy, realy don't understand why D is not good, even if I do your formula.

Why is so that D would have a truncate answer and not C?
I mean, both have a precision of 51 and only the scale is different (3 more digit more for C), which might explain something if you could explain my question here:

If I declare D as precision of 23 instead of 25 and still having a scale of 10
DECLARE @value1D DECIMAL(23,10), @value2D DECIMAL(23,10)
it is still a precision over 38, and the scale is still 20 as previous, but the answer is not truncate
Why??? Crazy
UMG Developer
UMG Developer
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Thanks for the question, it really does show why we need to pay close attention to the data types we use.
Nakul Vachhrajani
Nakul Vachhrajani
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Excellent question, with an excellent (If I may dare say, better than BOL) explanation!

Have a wonderful day!

Thanks & Regards,
Nakul Vachhrajani.
http://nakulvachhrajani.com
Be courteous. Drive responsibly.

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Koen Verbeeck
Koen Verbeeck
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Nice question, but a tough one for a Monday :-)


How to post forum questions.
Need an answer? No, you need a question.
What’s the deal with Excel & SSIS?
My blog at SQLKover.

MCSE Business Intelligence - Microsoft Data Platform MVP
Christian Buettner-167247
Christian Buettner-167247
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Very good question, indeed. +++

Best Regards,

Chris Büttner
Carlo Romagnano
Carlo Romagnano
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Unbelievable, but true!
Thank you for qotd and a clear explanation!

I run on tuttopodismo
paul s-306273
paul s-306273
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Good question - an area often overlooked by developers.
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