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Swapping column values in MySQL
...to using a temporary table, a temporary column, or other swap tricks.
@D4V360: I see. That is shocking and unexpected. I use PostgreSQL and my answer works correctly there (I tried it). See the PostgreSQL UPDATE docs (under Parameters, expression), where it mentions that expressions on the right ha...
Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...RX4 Wag", "Datsun 710",
"Hornet 4 Drive", "Duster 360", "Merc 240D"),
id2 = c("Maz", "Maz", "Dat", "Hor", "Dus", "Mer"),
hp = c(110, 110, 181, 110, 245, 62),
cyl = c(6, 6, 4, 6, 8, 4),
qsec = c(16.46, 17.02,...
jQuery Ajax calls and the Html.AntiForgeryToken()
...
I like the solution provided by 360Airwalk, but it may be improved a bit.
The first problem is that if you make $.post() with empty data, jQuery doesn't add a Content-Type header, and in this case ASP.NET MVC fails to receive and check the token. So you h...
Linux环境离线安装docker&docker-compose - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...大陆，由于网络延迟或带宽限制，直接从Docker Hub或其他国际仓库拉取镜像可能会非常慢，因此通常会配置国内的镜像镜像站点，如阿里云镜像站点，来加速镜像的拉取过程。【https://geuj9lut.mirror.aliyuncs.com】就是阿里云提供的一...
CSS performance relative to translateZ(0)
... enabled. Oddly enough, changing the "trick" to -webkit-transform: rotateZ(360deg); worked just fine.
I don't believe we ever figured out why.
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Changing the resolution of a VNC session in linux [closed]
...: -randr 800x600,1024x768,1280x800,1280x960,1280x1024,1680x1050,1920x1080,3360x1050,1024x700,1200x740,1600x1000,3200x1000
– bfroehle
Aug 22 '12 at 17:30
...
Force HTML5 youtube video
...ms with the iframe here's the code i used:
<object width="640" height="360">
<param name="movie" value="http://www.youtube.com/embed/VIDEO_ID?html5=1&amp;rel=0&amp;hl=en_US&amp;version=3"/>
<param name="allowFullScreen" value="true"/>
<param name="allowscriptaccess"...
微软推出Win10物联网版 新系统要“无处不在” - 资讯 - 清泛网 - 专注C/C++及内核技术
微软推出Win10物联网版 新系统要“无处不在”今年3月，微软就发布了Win 10的物联网版本，意在使和其他版本一起渗透到人们的生活和工作中，成为真正无处不在的操作系统。
今年3月，微软就发布了Win 10的物联网版本，意在使...
Convert a RGB Color Value to a Hexadecimal String
...tComponent(Graphics g)
{
super.paintComponent(g);
g.drawRect(360, 300, 10, 10);
g.fillRect(360, 300, 10, 10);
}
//changes the display color in JPanel
private Color changeColor()
{
int r = sRed.getValue();
int b = sBlue.getValue();
int g = sGreen.getValue();
...
文件编码批量转换工具（单文件版） - 软件下载 - 清泛网移动版 - 专注IT技能提升
文件编码批量转换工具（单文件版）File_Encoding_Batch_Conversion编码转换文件编码批量转换工具
1.0WinXP,Win7,Win80.48M