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What's the difference between VARCHAR and CHAR?
...91: in order to have a performance increase the whole row has to be fixed-width. MySQL gains advantage calculating the space requirements and offset of rows in that kind of table.
– Marco Demaio
Oct 17 '17 at 16:42
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Is the pImpl idiom really used in practice?
...by Herb Sutter, and in that book I have learned about the pImpl idiom. Basically, the idea is to create a structure for the private objects of a class and dynamically allocate them to decrease the compilation time (and also hide the private implementations in a better manner).
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Where is logback encoder pattern documentation
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I'm stupid. Sometimes something is in front of your eyes and you simply can't see it. I've went 3 times to that chapter and I didn't see it. Thanks!.
– pakore
Oct 7 '10 at 11:58
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Is GET data also encrypted in HTTPS?
...nt over https because not all of it is public, and you might also want to hide some of the public content from a MITM. In any event, it's best to let Google answer for themselves.
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Browse the files created on a device by the iOS application I'm developing, on workstation?
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tags: "".split(" "),
id: "1"
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StackExchange.using("externalEditor", function() {
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iOS (iPhone, iPad, iPodTouch) view real-time console log terminal
...9 and much easier to use.
This is a open-source program that displays the iDevice's system log in Terminal (in a manner similar to tail -F). No jailbreak is required, and the output is fully grep'able so you can filter to see output from your program only. What's particularly good about this solut...
What are major differences between C# and Java?
... is subtly different (C# executes variable initializers before the chained call to the base type's constructor)
Java doesn't have properties as part of the language; they're a convention of get/set/is methods
Java doesn't have the equivalent of "unsafe" code
Interop is easier in C# (and .NET in gene...
How to add 'ON DELETE CASCADE' in ALTER TABLE statement
... edited Dec 25 '16 at 15:02
David Silva-Barrera
49433 silver badges1212 bronze badges
answered Sep 4 '13 at 14:27
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Storing money in a decimal column - what precision and scale?
...about accounting rules which may be applicable: GAAP, EU, etc. I vaguely recall some EU intra-state transfers with explicit rules for rounding to five decimal places, therefore using DECIMAL(p, 6) for storage. Accountants generally seem to favour four decimal places.
PS Avoid SQL Server's MONEY d...
Error - trustAnchors parameter must be non-empty
...ed set of JAVA_HOME paths from 8 to 10, they try those one at a time, they call the Debian CA file generator which you can also read through, which uses the existing file format, because the JDK keyfile handler code, which you can read through, has a compatibility fallback mode. If your computer run...