大约有 30,000 项符合查询结果（耗时：0.0285秒） [XML]
The provider is not compatible with the version of Oracle client
...
You should "ignore" all the x86/x64 talk here for starters and instead try the ODP.NET Managed Driver (if you are using .Net v4+):
https://www.nuget.org/packages/Oracle.ManagedDataAccess/
https://www.nuget.org/packages/Oracle.ManagedDataAccess.EntityFramew...
Rails 4 multiple image or file upload using carrierwave
...avatar:string
rake db:migrate
In post.rb
class Post < ActiveRecord::Base
has_many :post_attachments
accepts_nested_attributes_for :post_attachments
end
In post_attachment.rb
class PostAttachment < ActiveRecord::Base
mount_uploader :avatar, AvatarUploader
belongs_to :post
end...
How do I create some kind of table of content in GitHub wiki?
...
It is nicely demonstrated in the Table of Contents of the Markdown Cheatsheet.
##### Table of Contents
[Headers](#headers)
[Emphasis](#emphasis)
...snip...
<a name="headers"/>
## Headers
If you hover over a Header in a ...
How to use icons and symbols from “Font Awesome” on Native Android Application
...nd:fonticon:0.1.9'
}
Get demo on Google Play.
You can easily add font-based icon in your layout:
<com.shamanland.fonticon.FontIconView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/ic_android"
android:textSize="@dimen/icon_siz...
How to extract the year from a Python datetime object?
...ey thing to note is that the time components can differ between 32-bit and 64-bit pythons in some python versions (2.5.x tree I think). So you will find things like hour/min/sec on some 64-bit platforms, while you get hour/minute/second on 32-bit.
...
What do the terms “CPU bound” and “I/O bound” mean?
...number and crunches it a lot:
serial
parallel
Sorting appears to be CPU based on the following experiment: Are C++17 Parallel Algorithms implemented already? which showed a 4x performance improvement for parallel sort, but I would like to have a more theoretical confirmation as well
The well kno...
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
...ord "efficient" here. Typical naive belief here (read following comments). Demo here.
– leaf
Mar 9 '19 at 9:03
1
...
Quickly find whether a value is present in a C array?
...ion. It can be modified to run in a fixed number of cycles to avoid timing-based forensics if the location of the value is sensitive information.
– OregonTrail
Sep 5 '14 at 16:17
1...
How do you stretch an image to fill a while keeping the image's aspect-ratio?
... much better. All you should need to do is to set the image width to 100% (demo)
.container img {
width: 100%;
}
Since you don't know the aspect ratio, you'll have to use some scripting. Here is how I would do it with jQuery (demo):
CSS
.container {
width: 40%;
height: 40%;
bac...
How to create a date object from string in javascript [duplicate]
...Date object, with a robust selection of methods available from __proto__. Demo in jsFiddle
– KyleMit
Apr 11 '17 at 19:19
4
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