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Facebook database design?
...rID and then the UserID of the friend (we will call it FriendID). Both colu<em>mem>ns would be foreign keys back to the Users table.
So<em>mem>ewhat useful exa<em>mem>ple:
Table Na<em>mem>e: User
Colu<em>mem>ns:
UserID PK
E<em>mem>ailAddress
Password
Gender
DOB
Location
TableNa<em>mem>e: Friends
Colu<em>mem>ns:
UserID PK FK...
Adding external library into Qt Creator project
How can I add external library into a project built by Qt Creator RC1 (version 0.9.2)? For exa<em>mem>ple, the win32 function Enu<em>mem>Processes() requires Psapi.lib to be added in the project to build.
...
Use tab to indent in textarea
I have a si<em>mem>ple ht<em>mem>l textarea on <em>mem>y side. Right now if you click tab in it, it goes to the next field. I would like to <em>mem>ake the tab button indent a few spaces instead. How can I do this? Thanks.
...
So<em>mem>e built-in to pad a list in python
...''] * (N - len(a))
you can always create a subclass of list and call the <em>mem>ethod whatever you please
class <em>Mem>yList(list):
def ljust(self, n, fillvalue=''):
return self + [fillvalue] * (n - len(self))
a = <em>Mem>yList(['1'])
b = a.ljust(5, '')
...
What is the difference between a Hash<em>Mem>ap and a Tree<em>Mem>ap? [duplicate]
I started learning Java. When would I use a Hash<em>Mem>ap over a Tree<em>Mem>ap?
8 Answers
8
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How to create index in Entity Fra<em>mem>ework 6.2 with code first
Is there a way to create an index on a property/colu<em>mem>n using code-first, instead of using the new IndexAttribute ?
10 Ans...
How to use single storyboard uiviewcontroller for <em>mem>ultiple subclass
...hich is connected to right navigation button of the navigation bar
Fro<em>mem> there I would like to use the storyboard as a te<em>mem>plate for other views without having to create additional storyboards. Say these views will have exactly the sa<em>mem>e interface but with root view controller of class SpecificVi...
When to use reinterpret_cast?
I a<em>mem> little confused with the applicability of reinterpret_cast vs static_cast . Fro<em>mem> what I have read the general rules are to use static cast when the types can be interpreted at co<em>mem>pile ti<em>mem>e hence the word static . This is the cast the C++ co<em>mem>piler uses internally for i<em>mem>plicit casts also.
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Ways to iterate over a list in Java
Being so<em>mem>ewhat new to the Java language I'<em>mem> trying to fa<em>mem>iliarize <em>mem>yself with all the ways (or at least the non-pathological ones) that one <em>mem>ight iterate through a list (or perhaps other collections) and the advantages or disadvantages of each.
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Linux下部署企业级邮件服务器(postfix + dovecot + ext<em>mem>ail) - 开源 &a<em>mem>p; Gith...
Linux下部署企业级邮件服务器(postfix + dovecot + ext<em>mem>ail)postfix + dovecot + ext<em>mem>ail解决方案搭建邮件服务器全攻略，以及搭建过程中常见问题的解决方法汇总。首先通过一幅图看看整个解决方案的原理：
当用户通过ext<em>mem>ail登陆时，首先ext<em>mem>...