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Error 1022 - Can't write; duplicate key in table
...es as the constraints on the old table.
A fix was released in 2.3.0.
See https://bugs.launchpad.net/percona-toolkit/+bug/1498128 for more details.
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How to start jenkins on different port rather than 8080 using command prompt in Windows?
...ommand prompt:
java -jar jenkins.war --httpPort=9090
If you want to use https use the following command:
java -jar jenkins.war --httpsPort=9090
Details are here
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Conditionally use 32/64 bit reference when building in Visual Studio
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I'm referencing the x86 DLLs, located in e.g. \component\v3_NET4, in my project. Specific DLLs for x86/x64 are located in sub-folders named "x86" and "x64" resp.
Then I'm using a pre-build script that copies apropriate DLLs (x86/x64) into the referenced folder, based on $(PlatformNa...
Why use symbols as hash keys in Ruby?
... then Ruby compares those "hashed keys" against each other.
Long answer:
https://web.archive.org/web/20180709094450/http://www.reactive.io/tips/2009/01/11/the-difference-between-ruby-symbols-and-strings
http://www.randomhacks.net.s3-website-us-east-1.amazonaws.com/2007/01/20/13-ways-of-looking-at...
Reading Excel files from C#
...just simple data contained in the Excel file you can read the data via ADO.NET. See the connection strings listed here:
http://www.connectionstrings.com/?carrier=excel2007
or
http://www.connectionstrings.com/?carrier=excel
-Ryan
Update: then you can just read the worksheet via something like sel...
New line in JavaScript alert box
... If I use \n in my alert message, the dialog does not even display in ASP.NET application. Does Microsoft has problem with this :)
– Hammad Khan
Jul 21 '11 at 12:16
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Virtual member call in a constructor
...d class (see Eric Lippert's blog for details as to why this is).
Also in .NET objects do not change type as they are constructed, but start out as the most derived type, with the method table being for the most derived type. This means that virtual method calls always run on the most derived type.
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How can you program if you're blind?
...more accessible then programs that use Swing which is why I stay away from netbeans. For any .net programming I use visual studio 2005 since it was the standard version used at my internship and is very accessible using Jaws and a set of scripts that were developed to make things such as the form de...
View HTTP headers in Google Chrome?
...ion of response headers and a normal mode that shows all the information.
https://chrome.google.com/webstore/detail/http-spy/agnoocojkneiphkobpcfoaenhpjnmifb
Enjoy!
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When to use a key/value store such as Redis instead/along side of a SQL database?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...