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First-time database design: am I overengineering? [closed]
... you eventually get to the point where you have multiple environments (dev/test/staging/prod), you may want to migrate data from one to the other. Have GUID Ids makes this significantly easier.
3- Three layers for your Company -> Division -> Department structure may not be enough. Now, th...
Add unique constraint to combination of two columns
...UAL
ON USER_UND(UUL_USR_IDF, UUL_ATUAL)
WHERE UUL_ATUAL = 1;
Here are my test cases:
SELECT * FROM USER_UND WHERE UUL_USR_IDF = 137
insert into USER_UND values (137, 22, 1) --I CAN NOT => Cannot insert duplicate key row in object 'dbo.USER_UND' with unique index 'UQ_USR_UND_UUL_USR_IDF_UUL_AT...
What blocks Ruby, Python to get Javascript V8 speed? [closed]
... who are working on V8 also created the Self VM (to this day one of the fastest dynamic OO language execution engines ever created), the Animorphic Smalltalk VM (to this day one of the fastest Smalltalk execution engines ever created), the HotSpot JVM (the fastest JVM ever created, probably the fast...
Can a Windows batch file determine its own file name?
...he file name, but in your examples you use n for the file name. After some testing, it seems that f is the full path, and n is the file name.
– Drew Chapin
Oct 9 '15 at 12:10
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How to make node.js require absolute? (instead of relative)
...
This solution will not work if code covered with unit tests like Mocha test
– alx lark
Nov 3 '16 at 9:01
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How do I fix blurry text in my HTML5 canvas?
...atforms are modern phones which nearly all seem to have high DPI screens). Tested on HTC 8X and Lumia 1020.
– Aardvark
Oct 30 '13 at 19:49
1
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Default value of function parameter
...
int Add(int a, int b);
lib.cpp
int Add(int a, int b = 3) {
...
}
test.cpp
#include "lib.h"
int main() {
Add(4);
}
The compilation of test.cpp will not see the default parameter declaration, and will fail with an error.
For this reason, the default parameter definition is usually s...
How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
... 7: R_X86_64_PC32 time-0x4
b: 48 85 c0 test %rax,%rax
e: 75 14 jne 24 <main+0x24>
10: ba 01 00 00 00 mov $0x1,%edx
15: be 00 00 00 00 mov $0x0,%esi
16: R_X86_64_32 .r...
What is the default location for MSBuild logs?
... and press CTRL + S to save. Visual Studio will prompt you for a location (tested with Visual Studio 2017, but I'm assuming this works in earlier versions too).
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Cross-browser custom styling for file upload button [duplicate]
...- refused to work on a visibility:hidden or display:none file-input). I've tested in emulated IE7 and up, and it worked perfectly.
You can't use <button>s inside <label> tags unfortunately, so you'll have to define the styles for the buttons yourself. To me, this is the only downside...