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What is Turing Complete?

... in practice, because no realizable system has an infinite tape. What we really mean is that some systems have the ability to approximate Turing-completeness up to the limits of their available memory. – Shelby Moore III Aug 8 '14 at 22:40 ...
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How do you list the primary key of a SQL Server table?

... Actually, I believe you have to also constrain by Schema, right? So, you'd need to add "And COL.TABLE_SCHEMA = '<your schema name>'" as well. – DavidStein May 17 '13 at 15:56 ...
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How to debug .htaccess RewriteRule not working

...l 9 Using a high value for Level will slow down your Apache server dramatically! Use the rewriting logfile at a Level greater than 2 only for debugging! Level 9 will log almost every rewritelog detail. UPDATE Things have changed in Apache 2.4: FROM Upgrading to 2.4 from 2.2 The RewriteLog ...
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SQL select only rows with max value on a column [duplicate]

... At first glance... All you need is a GROUP BY clause with the MAX aggregate function: SELECT id, MAX(rev) FROM YourTable GROUP BY id It's never that simple, is it? I just noticed you need the content column as well. This is a very common q...
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Replace specific characters within strings

... fixed=TRUE prevents R from using regular expressions, which allow more flexible pattern matching but take time to compute. If all that's needed is removing a single constant string "e", they aren't necessary. – mm689 Oct 31 '16 at 19:16 ...
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Windows recursive grep command-line

...hes pattern if at the end of a line. /L Uses search strings literally. /R Uses search strings as regular expressions. /S Searches for matching files in the current directory and all subdirectories. /I Specifies that the search is not to be case-se...
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Extract subset of key-value pairs from Python dictionary object?

... If you're using Python 3, and you only want keys in the new dict that actually exist in the original one, you can use the fact to view objects implement some set operations: {k: bigdict[k] for k in bigdict.keys() & {'l', 'm', 'n'}} ...
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Failed to load resource under Chrome

...sabled (ctrl+shift+n) and see if your page works now. Note that by default all extensions will be already disabled in incognito mode unless you've specifically set them to run (via chrome://extensions). share | ...
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How do I provide a username and password when running “git clone git@remote.git”?

...nfiguration of the remote server. Use ssh-agent to avoid typing passwords all the time If you don't want to type your ssh password all the time, the typical solution is to generate a public/private key pair, put the public key in your ~/.ssh/authorized_keys file on the remote server, and load your...
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Should services always return DTOs, or can they also return domain models?

..., adding a new layer to your lasagna. is it ok to return domain models all the way to controllers, or should we always use DTOs for communication with service layer? A DTO is a response/request object, it makes sense if you use it for communication. If you use domain models in your presentatio...