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Arithmetic 1 Expand / Collapse
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Posted Tuesday, February 28, 2012 8:41 PM


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Comments posted to this topic are about the item Arithmetic 1

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

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Post #1259233
Posted Tuesday, February 28, 2012 8:43 PM


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Good Question. Back to the basics. +1 to the total.
Post #1259235
Posted Tuesday, February 28, 2012 10:10 PM
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Good Question....
Post #1259253
Posted Wednesday, February 29, 2012 12:38 AM
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Very interesting question. Learnt something new again.
Post #1259290
Posted Wednesday, February 29, 2012 1:37 AM
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The explanation I see is that on answers 1,3,4,5,6 implicit data types conversion happens because of mixing INT and CHAR types.

On the answer 2, we just try to multiply 2 CHAR, therefore an error is raised up.

Good question!
Post #1259310
Posted Wednesday, February 29, 2012 1:41 AM
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raulggonzalez (2/29/2012)
The explanation I see is that on answers 1,3,4,5,6 implicit data types conversion happens because of mixing INT and CHAR types.

On the answer 2, we just try to multiply 2 CHAR, therefore an error is raised up.

Good question!
Yeah, I have to agree, multiplying strings is the cause. It errors before it even tries to implicitly cast the answer to an int.
Post #1259314
Posted Wednesday, February 29, 2012 1:45 AM


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I particularly like the fact that a QOTD was verified by several people before publication.

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Post #1259316
Posted Wednesday, February 29, 2012 1:48 AM


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It gives me this error on the 2nd block

Msg 8117, Level 16, State 1, Line 3
Operand data type char is invalid for multiply operator.

I guess E stands for ERROR?



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Post #1259319
Posted Wednesday, February 29, 2012 1:54 AM


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This kind of error also is independent from version of sqlserver.
You can not use - * / operators with chars
Post #1259329
Posted Wednesday, February 29, 2012 2:34 AM
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Yet another question that tells us not to rely on implicit conversion...
Post #1259357
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