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“Prevent saving changes that require the table to be re-created” negative effects
...d answer, I feel it doesn't provide answers to all of the questions raised by the OP, and those questions are the ones I'm interested in, actually. In particular Are there any negative effects / possible drawbacks of doing this? and If so, is the table copy a 100% exact replica of the source table?....
NULL values inside NOT IN clause
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UNKNOWN
The UNKNOWN is not the same as FALSE
you can easily test it by calling:
select 'true' where 3 <> null
select 'true' where not (3 <> null)
Both queries will give you no results
If the UNKNOWN was the same as FALSE then assuming that the first query would give you FALSE ...
Weird Integer boxing in Java
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The true line is actually guaranteed by the language specification. From section 5.1.7:
If the value p being boxed is true,
false, a byte, a char in the range
\u0000 to \u007f, or an int or short
number between -128 and 127, then let
r1 and r2 be the...
CruiseControl [.Net] vs TeamCity for continuous integration?
...elease and wrote some of the early code for cc.tray (thankfully re-written by someone who knew better).
Cruise, from ThoughtWorks, also looks quite good but I don't see a compelling reason for me to switch. If I were starting a new project I might give it a try, but TeamCity has done a great job o...
Is there a way to tell git to only include certain files instead of ignoring certain files?
...gnore file with * and then list all of my included file patterns proceeded by an exclamation point.
– Daisy Sophia Hollman
Aug 14 '09 at 19:44
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What is aspect-oriented programming?
...mitted from the serialized object. Serialization is an aspect, implemented by other code in the system, and applied to your class by the application of a "configuration" attribute (decoration) .
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When should I use Kruskal as opposed to Prim (and vice versa)?
...an't make as strong promises about the cost of a particular operation, but by the time the algorithm is done, it will indeed by O(E+VlogV), even worst-case.
– agorenst
Jul 30 '09 at 16:49
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Getting the thread ID from a thread
...proach to identify threads as the ManagedThreadId property id's get reused by your app. So it is not a reliable identifier for threads in some scenarios and you will experience the exception : "An item with the same key has already been added." at line... Give the thread a unique name when you creat...
What command opens Ruby's REPL?
What command opens Ruby's REPL?
2 Answers
2
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Recommended way to save uploaded files in a servlet application
...n the webapp's deploy folder will not work at all. Some servers do (either by default or by configuration) not expand the deployed WAR file into the local disk file system, but instead fully in the memory. You can't create new files in the memory without basically editing the deployed WAR file and r...