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PHP Redirect with POST data

... Generate a form on Page B with all the required data and action set to Page C and submit it with JavaScript on page load. Your data will be sent to Page C without much hassle to the user. This is the only way to do it. A redirect is a 303 HTTP header tha...
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Efficiently convert rows to columns in sql server

...d than just a single script but gives you much more flexibility. First of all There are 3 objects: User defined TABLE type [ColumnActionList] -> holds data as parameter SP [proc_PivotPrepare] -> prepares our data SP [proc_PivotExecute] -> execute the script CREATE TYPE [dbo].[ColumnAc...
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Manually raising (throwing) an exception in Python

... How do I manually throw/raise an exception in Python? Use the most specific Exception constructor that semantically fits your issue. Be specific in your message, e.g.: raise ValueError('A very specific bad thing happened.') Don't ...
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How to use Elasticsearch with MongoDB?

... instance. Make sure everything is up to date. sudo apt-get update Install NodeJS. sudo apt-get install nodejs sudo apt-get install npm Install MongoDB - These steps are straight from MongoDB docs. Choose whatever version you're comfortable with. I'm sticking with v2.4.9 because it seems to b...
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How do I best silence a warning about unused variables?

I have a cross platform application and in a few of my functions not all the values passed to functions are utilised. Hence I get a warning from GCC telling me that there are unused variables. ...
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What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]

The sample code below occurred naturally. Suddenly my code thew a very nasty-sounding FatalExecutionEngineError exception. I spent a good 30 minutes trying to isolate and minimize the culprit sample. Compile this using Visual Studio 2012 as a console app: ...
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What is copy-on-write?

...gy used in computer programming. The fundamental idea is that if multiple callers ask for resources which are initially indistinguishable, you can give them pointers to the same resource. This function can be maintained until a caller tries to modify its "copy" of the resource, at which point a true...
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Troubleshooting “Illegal mix of collations” error in mysql

... This is generally caused by comparing two strings of incompatible collation or by attempting to select data of different collation into a combined column. The clause COLLATE allows you to specify the collation used in the query. For exa...
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How to create a DataTable in C# and how to add rows?

...ma/structure, do: dt.WriteXMLSchema("dtSchemaOrStructure.xml"); Additionally, you can also export your data: dt.WriteXML("dtDataxml"); share | improve this answer | foll...
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Can I implement an autonomous `self` member type in C++?

...question, not the answer. In many cases in software development (and especially maintenance) it is helpful to avoid redundancies in the code, so that changing something in one place does not require you to change code in another place. That's the whole point of auto and decltype or in this case of s...