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What does [STAThread] do?
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edited Sep 5 '16 at 16:19
jrh
29822 gold badges88 silver badges2626 bronze badges
answered S...
Add unique constraint to combination of two columns
...TER TABLE dbo.yourtablename
ADD CONSTRAINT uq_yourtablename UNIQUE(column1, column2);
or
CREATE UNIQUE INDEX uq_yourtablename
ON dbo.yourtablename(column1, column2);
Of course, it can often be better to check for this violation first, before just letting SQL Server try to insert the row and...
Are there any side effects of returning from inside a using() statement?
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165
No, I think it's clearer this way. Don't worry, Dispose will still be called "on the way out" ...
Responsive website zoomed out to full width on mobile
...ead..
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
This tells smaller device browsers how to scale the page. You can read more about this here: https://developer.apple.com/library/content/documentation/AppleApplications/Reference/SafariWebContent/Usi...
Comma separator for numbers in R?
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135
You can try either format or prettyNum, but both functions return a vector of characters. I'd ...
std::shared_ptr thread safety explained
...e only newly created object?
is incorrect. Only d will point to the new A(10), and a, b, and c will continue to point to the original A(1). This can be seen clearly in the following short example.
#include <memory>
#include <iostream>
using namespace std;
struct A
{
int a;
A(int a)...
Copy all files with a certain extension from all subdirectories
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179
--parents is copying the directory structure, so you should get rid of that.
The way you've w...
What is the difference between shallow copy, deepcopy and normal assignment operation?
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11 Answers
11
Active
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swift case falling through
...= "hello"
var result = 0
switch testVal {
case "one", "two":
result = 1
default:
result = 3
}
Alternatively, you can use the fallthrough keyword:
var testVal = "hello"
var result = 0
switch testVal {
case "one":
fallthrough
case "two":
result = 1
default:
result = 3
}
...
How do I add a path to PYTHONPATH in virtualenv
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157
You can usually avoid having to do anything with PYTHONPATH by using .pth files. Just put a fi...