T-SQL SQL 2008

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T-SQL SQL 2008

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Lynn Pettis SSC Guru Points: 442467 More actions · Answer 1

I got it right, but I had to research BOL to figure out some of the operators. Guess I should have started at the end, would have saved a few brain cells.

Excellent question, learned something new in SQL Server 2008.

KevinC. SSCommitted Points: 1570 More actions · Answer 2

Good question.

Also, thanks for the added explanation, Hugo. I knew what everything was except for the Exclusive OR (^).:-)

Thanks.

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Kevin C.

Michael Poppers SSCrazy Points: 2149 More actions · Answer 3

Lynn Pettis (6/21/2010)
I got it right, but I had to research BOL to figure out some of the operators.

Sounds like I'm in the minority in having a background in C programming :-).

Re the QotD image not being visible in email: that (along with what IMHO is worse visibility) is why I don't like this trend towards images for QotDs. Given the comments of others in previous discussions on the subject, here too I may be in the minority. I'll deal with whatever presentation method is utilized by SSC, but for now, my vote goes to the text method.

UMG Developer SSChampion Points: 13482 More actions · Answer 4

Nice question, it made me think a more than usual, thanks!

Jeff Cook-476310 SSC Enthusiast Points: 114 More actions · Answer 5

Yes, it would be nice if the explanation explained what the bitwise compound assignment operators were especially since those were the real challenge of the question. Even the link provided (http://technet.microsoft.com/en-us/library/cc721270.aspx) does not mention them. . .

sharath.chalamgari SSCertifiable Points: 5680 More actions · Answer 6

I was sure about the %(Modulo) and found the answer quit easily.

i learned about Bitwise Exclusive OR (^).thanks for a nice Question.

paul.knibbs SSCoach Points: 15320 More actions · Answer 7

Bizarrely enough, the modulo operator was the one I had to go to BOL to check up on--I don't think I've ever used it in SQL before! Bitwise operators I've encountered many times before in my C programming career (long time ago now).

ziangij SSCertifiable Points: 7992 More actions · Answer 8

ziangij

SSCertifiable

Points: 7992

June 22, 2010 at 2:18 am

#1183135

nice question.... thanks 🙂

John McC Hall of Fame Points: 3410 More actions · Answer 9

Picture didn't appear for me either.

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Normal chaos will be resumed as soon as possible. :crazy:

jschmidt 17654 SSCommitted Points: 1610 More actions · Answer 10

Can someone post the question? After loading all the email images in Outlook, the question image will not display for me. Thanks.

Ninja's_RGR'us SSC Guru Points: 294069 More actions · Answer 11

jschmidt 17654 (6/22/2010)
Can someone post the question? After loading all the email images in Outlook, the question image will not display for me. Thanks.

Scroll up, hit the link at the top of the first post and go to the page straight on the web rather than outlook, the picture will appear there.

TomThomson SSC Guru Points: 104773 More actions · Answer 12

Toreador (6/21/2010)
I agree with Hugo - I knew the modulus answer, but had no idea what the others were. So got it correct as only one option had the right value for @e 🙂

I didn't remember straight away whether the | operator was bitwise OR (as in some awful programming languages) or bitwise NAND (traditional use, going back to Scheffer's 1913 paper) but like you I noticed that it didn't matter as % determined the answer on its own. And then it was easy to see that 1|1 = 1 and 1|0 = 1 and 0|0 = 0 so | must be OR.

I wonder why SQL uses the Scheffer Stroke for OR when it's traditional use in maths, logic, CS, and hardware design is for NAND; I'll bet it's inherited this use from some awful low level programming language.

Tom

Dhruvesh Shah SSCrazy Points: 2303 More actions · Answer 13

^ (bitwise exclusive or) took some time to find out the correct answer

good question thanks.