大约有 30,000 项符合查询结果（耗时：0.0569秒） [XML]
What is the difference between SQL, PL-SQL and T-SQL?
...ilt-in interpreted and OS independent programming
environment.
directly be called from the command-line SQL*Plus interface.
Direct call can also be made from external programming language calls
to database.
general syntax is based on that of ADA and Pascal programming
language.
Apart from Oracle, it...
'git branch -av' showing remote branch that no longer exists
...ence to anything. Instead, it actually contains the SHA-1 hash (the commit id) of the commit you are switching to.
Now, how to check out a local branch, that is the same as the remote branch?
Easy, you create a local branch, at the time of checkout remote branch.
$ git checkout -b my_local_br...
Pushing empty commits to remote
...ld like to change the commit message but AFAIK it is not possible. So i decided to create empty commit with correct message:
...
How to access cookies in AngularJS?
...swers the original question, there are other solutions you may wish to consider such as using localstorage, or jquery.cookie plugin (which would give you more fine-grained control and do serverside cookies. Of course doing so in angularjs means you probably would want to wrap them in a service and u...
Ignoring a class property in Entity Framework 4.1 Code First
...clude a particular property
public class Customer
{
public int CustomerID { set; get; }
public string FirstName { set; get; }
public string LastName{ set; get; }
[NotMapped]
public int Age { set; get; }
}
[NotMapped] attribute is included in the System.ComponentModel.DataAnnot...
How to move Jenkins from one PC to another
...ins instance. So I wrote a menu driven utility which uses Jenkins REST API calls to install plugins and jobs from one Jenkins instance to another.
For plugin migration:
GET request: {SOURCE_JENKINS_SERVER}/pluginManager/api/json?depth=1 will get you the list of plugins installed with their versio...
What's better at freeing memory with PHP: unset() or $var = null
I realise the second one avoids the overhead of a function call ( update , is actually a language construct), but it would be interesting to know if one is better than the other. I have been using unset() for most of my coding, but I've recently looked through a few respectable classes found off t...
Show loading image while $.ajax is performed
...
The "image" people generally show during an ajax call is an animated gif. Since there is no way to determine the percent complete of the ajax request, the animated gifs used are indeterminate spinners. This is just an image repeating over and over like a ball of circles of ...
Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
... scientific application. One thing I noticed is that GCC will optimize the call pow(a,2) by compiling it into a*a , but the call pow(a,6) is not optimized and will actually call the library function pow , which greatly slows down the performance. (In contrast, Intel C++ Compiler , executable ...
How to initialize an array's length in JavaScript?
...
Why do you want to initialize the length? Theoretically there is no need for this. It can even result in confusing behavior, because all tests that use the length to find out whether an array is empty or not will report that the array is not empty.
Some tests show that setti...