大约有 43,000 项符合查询结果（耗时：0.0469秒） [XML]
What are the main performance differences between varchar and nvarchar SQL Server data types?
... using 3 letter codes. And consider using a binary Collation such as Latin1_General_100_BIN2.
If storing postal codes (i.e. zip codes), use VARCHAR since it is an international standard to never use any letter outside of A-Z. And yes, still use VARCHAR even if only storing US zip codes and not INT s...
How do you rename a MongoDB database?
...
You could do this:
db.copyDatabase("db_to_rename","db_renamed","localhost")
use db_to_rename
db.dropDatabase();
Editorial Note: this is the same approach used in the question itself but has proven useful to others regardless.
...
How do I tidy up an HTML file's indentation in VI?
...really want to, you can get those tags to be indented like so:
:let g:html_indent_inctags = "html,body,head,tbody"
See "HTML indenting not working in compiled Vim 7.4, any ideas?" and "alternative html indent script" for more information.
...
Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
...
Is it better to avoid the app_compat?
– Neolardo Va Dinci
Feb 22 '15 at 2:26
2
...
How to open files relative to home directory
...a mere convention; indeed, if you look at the documentation for File.expand_path, it correctly interprets the tilde, but it's a feature of the function itself, not something inherent to the underlying system; also, File.expand_path requires the $HOME environment variable to be correctly set. Which b...
How to draw a line in android
...rself just simple and clean add the line in xml.
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@android:color/black" />
The example code I provided will generate a line that fills the screen in width and has a height of one dp.
If you have ...
Using the Android Application class to persist data
...nController extends Application {
private static ApplicationController _appCtrl;
public static ApplicationController getAppCtrl()
{
return _appCtrl;
}
}
Because subclasses of Application also can obtain the Resources, you could access them simply when you define a static ...
C# HttpClient 4.5 multipart/form-data upload
... string url = "myAddress/myWS/api/Home/SendImage?foto="; await _client.PostAsync(url, requestContent); return "ok"; }
– atapi19
Jan 29 '18 at 14:59
...
How do I use vim registers?
...
How to enable if one has -xterm_clipboard on vim --version. Any simple package to install? (debian/apt-get). Thanks.
– DrBeco
Aug 24 '14 at 22:30
...
How to extract a git subdirectory and make a submodule out of it?
...-branch --commit-filter 'if [ z$1 = z`git rev-parse $3^{tree}` ]; then skip_commit "$@"; else git commit-tree "$@"; fi'
You need to use the -f force argument run filter-branch again with anything in refs/original/ (which basically a backup)
Of course this will never be perfect, for example if you...