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Unique constraint on multiple columns
...finition would be:
CREATE TABLE [dbo].[user](
[userID] [int] IDENTITY(1,1) NOT NULL,
[fcode] [int] NULL,
[scode] [int] NULL,
[dcode] [int] NULL,
[name] [nvarchar](50) NULL,
[address] [nvarchar](50) NULL,
CONSTRAINT [PK_user_1] PRIMARY KEY CLUSTERED
(
[userID...
Angularjs if-then-else construction in expression
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219
Angular expressions do not support the ternary operator before 1.1.5, but it can be emulated li...
Why does Maven warn me about encoding?
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18
When you run the goal archetype:create-from-project, Maven generates a POM file for building th...
What is Microsoft.csharp.dll in .NET 4.0
This DLL is added by default in Visual Studio 2010 projects. What is this new assembly used for? It does not seem to contain much after looking at it using Reflector and Google does not seem to have much to say about it either.
...
curl_exec() always returns false
..._URL, 'http://example.com/');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt(/* ... */);
$content = curl_exec($ch);
// Check the return value of curl_exec(), too
if ($content === false) {
throw new Exception(curl_error($ch), curl_errno($ch));
}
/* Pro...
Accessing the index in 'for' loops?
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edited Sep 17 '16 at 10:13
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
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Capture key press (or keydown) event on DIV element
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(1) Set the tabindex attribute:
<div id="mydiv" tabindex="0" />
(2) Bind to keydown:
$('#mydiv').on('keydown', function(event) {
//console.log(event.keyCode);
switch(event.keyCode){
//....your actions...
How to ignore files which are in repository?
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189
If the file is still displayed in the status, even though it is in the .gitignore, make sure i...
Global and local variables in R
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158
Variables declared inside a function are local to that function. For instance:
foo <- func...