大约有 40,000 项符合查询结果（耗时：0.0515秒） [XML]
MongoDB and “joins” [duplicate]
...ble (you "join two tables into one").
You can read more about DBRef here:
http://docs.mongodb.org/manual/applications/database-references/
There are two possible solutions for resolving references. One is to do it manually, as you have almost described. Just save a document's _id in another docume...
Undo git update-index --assume-unchanged
...ce the first letter tag could be letters other than 'H'/'h'. From git-scm.com/docs/git-ls-files: This option identifies the file status with the following tags (followed by a space) at the start of each line: H:: cached S:: skip-worktree M:: unmerged R:: removed/deleted C:: modified/chan...
Case-Insensitive List Search
...one it hits).
if(testList.FindIndex(x => x.Equals(keyword,
StringComparison.OrdinalIgnoreCase) ) != -1)
Console.WriteLine("Found in list");
Alternately use some LINQ methods (which also stops on the first one it hits)
if( testList.Any( s => s.Equals(keyword, StringComparison.Or...
Creating an index on a table variable
...ences appear in additional features. See this amazingly complete writeup: https://dba.stackexchange.com/questions/16385/whats-the-difference-between-a-temp-table-and-table-variable-in-sql-server/16386#16386
Although there are cases where a temp table can't be used such as in table or scalar functi...
Determine if running on a rooted device
...standart processes.
There is a bug report for same issue on bugs.sun.com: http://bugs.sun.com/view_bug.do?bug_id=6474073 this explains if command is not found zombies are going to be created with exec() method. But I still don't understand why and how can they become standart processes and hold sig...
How to git-cherry-pick only changes to certain files?
...mode 100644 test/unit/models/avatar_test.rb
Sources and full explanation http://jasonrudolph.com/blog/2009/02/25/git-tip-how-to-merge-specific-files-from-another-branch/
UPDATE:
With this method, git will not MERGE the file, it will just override any other change done on the destination branch. ...
insert vs emplace vs operator[] in c++ map
...rom which the value_type can be constructed, which is where std::make_pair comes into play, as it allows for simple creation of std::pair objects, although it is probably not what you want...
The net effect of the following calls is similar:
K t; V u;
std::map<K,V> m; // std::map&l...
Why do you not use C for your web apps?
...WAN to .NET Java and PHP, I wrote similar applications in all 4 languages: http://gwan.ch/source/
And, to my dismay, the modern scripting languages were not easier to use.
One part of the job which is especially frustrating is to desperately search for the 'magic' API call that will do what you wa...
How to find patterns across multiple lines using grep?
...make things easier, but grep will work too. For example, see stackoverflow.com/a/7167115/123695
– Michael Mior
Apr 28 '14 at 18:56
|
show 9 ...
PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
...
http://en.wikipedia.org/wiki/Year_2038_problem has most of the details
In summary:
1) + 2) The problem is that many systems store date info as a 32-bit signed int equal to the number of seconds since 1/1/1970. The latest d...