大约有 40,000 项符合查询结果（耗时：0.0671秒） [XML]
Facebook database design?
I have always wondered how Facebook designed the friend user relation.
13 Answers
13
...
Select multiple records based on list of Id's with linq
...xplicitly write == anywhere when you're trying to compare the items of one set (the array) against another (the database table).
– Yuck
May 29 '13 at 22:00
...
What's an easy way to read random line from a file in Unix command line?
What's an easy way to read random line from a file in Unix command line?
13 Answers
13...
Resolve Type from Class Name in a Different Assembly
...
Similar to the OP, I needed to load a limited subset of types by name (in my case all of the classes were in a single assembly and implemented the same interface). I had a lot of weird issues when trying to use Type.GetType(string) against a different assembly (even adding ...
Check whether a value is a number in JavaScript or jQuery [duplicate]
I want to check misCharge is number or not. Is there any method or easy way in jQuery or JavaScript to do this?
3 Answers...
C++在堆上申请二维数组 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++在堆上申请二维数组假设要申请的是double型大小m*n数组有如下方法方法一：优点：申请的空间是连续的 缺点：较难理解double (*d)[n] = new double[m][n]复...假设要申请的是double型大小m*n数组
有如下方法
方法一：优点：申请的空...
How can I convert immutable.Map to mutable.Map in Scala?
...he new copy to save time, or you double your access times by reading changesets instead of the original map. Which one performs best probably depends on your use case.
– Rex Kerr
Feb 18 '11 at 16:00
...
Why should I use core.autocrlf=true in Git?
...
The only specific reasons to set autocrlf to true are:
avoid git status showing all your files as modified because of the automatic EOL conversion done when cloning a Unix-based EOL Git repo to a Windows one (see issue 83 for instance)
and your coding ...
How to see query history in SQL Server Management Studio
... Ed Harper's answer - though it isn't free in SQL Server 2012+. Or you can set up some lightweight tracing filtered on your login or host name (but please use a server-side trace, not Profiler, for this).
As @Nenad-Zivkovic commented, it might be helpful to join on sys.dm_exec_query_stats and ord...
shortcut for creating a Map from a List in groovy?
I'd like some sorthand for this:
8 Answers
8
...