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Linq code to select one item

I find myself writing a lot of code like this to select one item that matches 7 Answers ...
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How to keep one variable constant with other one changing with row in excel

Lets say I have one cell A1, which I want to keep constant in a calculation. For example, I want to calculate a value like this: ...
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What is the difference between Amazon SNS and Amazon SQS?

...QS. Messages can't be received by multiple receivers at the same time. Any one receiver can receive a message, process and delete it. Other receivers do not receive the same message later. Polling inherently introduces some latency in message delivery in SQS unlike SNS where messages are immediately...
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Cannot push to Heroku because key fingerprint

... simple app to Heroku. This is the second app that I deploy, and the first one I was able to do it just fine. However I am having some issues with this one. Whenever I " git push heroku master ", I get this error: ...
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One SVN repository or many?

...sitories are may require multiple files. Maintenance has similar issues - one big backup, or a lot of little backups. I manage my own. There's one repository, multiple projects, each with its own tags, trunk and branches. If one gets too big or I need to physically isolate a customer's code for ...
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Synchronizing a local Git repository with a remote one

I want to synchronize my local repository with a remote one so that my local repository becomes a 100% copy of the remote one - meaning that if certain files differ in these repositories, we override the local ones with the remote ones, and if there are files in local repositories that do not exist ...
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Select where count of one field is greater than one

... One way SELECT t1.* FROM db.table t1 WHERE exists (SELECT * FROM db.table t2 where t1.pk != t2.pk and t1.someField = t2.someField) ...
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Why use the params keyword?

... One danger with params Keyword is, if after Calls to the Method have been coded, someone accidentally / intentionally removes one/more required Parameters from the Method Signature, and one/more required Parameters immed...
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cscope or ctags why choose one over the other? [closed]

... I haven't ever used either cscope or ctags and would like to hear why one might choose one over the other taking into consideration my use of vim as a primary editor. ...
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How to test if parameters exist in rails

...ets triggered. How can I make this part ONLY get triggered if both params[:one] and params[:two] is set? 14 Answers ...