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difference between primary key and unique key
...d on multiple columns, e.g. Primary key (CustomerID, ProductID). This is called composite primary key. This is to clarify the first point, as it might be take as it is (read one key => one column ) by new comer to sql : )
– ken
Apr 10 '14 at 13:53
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NumPy: function for simultaneous max() and min()
...he same for the min value. If I want to find both max and min, I have to call both functions, which requires passing over the (very big) array twice, which seems slow.
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Is there a better way to do optional function parameters in JavaScript? [duplicate]
... Well, you aren't talking about optional parameters - you really are passing a parameter, so this solution doesn't apply to your case. NaN doesn't mean "undefined" - it means you've passing a number but its value is NaN. See stackoverflow.com/questions/3215120/… for more
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Convert dmesg timestamp to custom date format
...kernel.org/pub/linux/utils/util-linux/v2.20/…
– ks1322
Apr 2 '14 at 8:04
1
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How do I set up curl to permanently use a proxy? [closed]
...ou can make a alias in your ~/.bashrc file :
alias curl="curl -x <proxy_host>:<proxy_port>"
Another solution is to use (maybe the better solution) the ~/.curlrc file (create it if it does not exist) :
proxy = <proxy_host>:<proxy_port>
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MFC AfxMessageBox改变标题的几种方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
MFC AfxMessageBox改变标题的几种方法1、资源文件AFX_IDS_APP_TITLE：其实这个标题，也就是我们的默认的工程名，我们应该怎么在不改变工程名的基础上改变标题呢？其实这个标题在...1、资源文件AFX_IDS_APP_TITLE（推荐）：
AfxMessageBox的...
状态栏进度条拓展：ProgressStatusBar - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
原文链接：https://community.kodular.io/t/f ... -statusbar/158057/1
{:8_389:}{:8_381:}
Name of this month (Date.today.month as name)
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Dylan MarkowDylan Markow
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What is the difference between Scala's case class and class?
...xclusively depend on their constructor arguments.
This functional concept allows us to
use a compact initialization syntax (Node(1, Leaf(2), None)))
decompose them using pattern matching
have equality comparisons implicitly defined
In combination with inheritance, case classes are used to mimi...
Repository Pattern vs DAL
...e method will take any number of parameters. While this may sound like a small difference, it is a big issue when you enter the realms of Linq and Expressions.
Our default repository interface looks like this:
public interface IRepository : IDisposable
{
T[] GetAll<T>();
T[] GetAll<...