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How to convert a column number (e.g. 127) into an Excel column (e.g. AA)

...og{base a} (A (a-1)/a +1). If I use the example of a = 10 and K = 192, I know that N = 2.23804… . This tells me that K lies at the beginning of the third space since it is a little greater than two. The next step is to find exactly how far in the current space we are. To find this, subtract fr...
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ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired

... from here ORA-00054: resource busy and acquire with NOWAIT specified You can also look up the sql,username,machine,port information and get to the actual process which holds the connection SELECT O.OBJECT_NAME, S.SID, S.SERIAL#, P.SPID, S.PROGRAM,S.USERNAME, S.MACHINE,S.PORT...
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Require either of two arguments using argparse

... HEy @ijoseph, this answer is prett old by now. I'm not sure what the answer was any more. It probably has been removed by now. Sorry for that! – jlengrand Apr 13 '18 at 9:13 ...
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htaccess redirect to https://www

...ll catch it. RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301] # Now, rewrite any request to the wrong domain to use www. # [NC] is a case-insensitive match RewriteCond %{HTTP_HOST} !^www\. [NC] RewriteRule .* https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301] About proxying When behind s...
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What is stability in sorting algorithms and why is it important?

...vince yourself of that. (by the way, that algorithm is called radix sort) Now to answer your question, suppose we have a list of first and last names. We are asked to sort "by last name, then by first". We could first sort (stable or unstable) by the first name, then stable sort by the last name....
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Java maximum memory on Windows XP

...n't rebase those libraries, so they are still a problem for us. We know how to make chunked heaps, but there would be some overhead to using them. We have more requests for faster storage management than we do for larger heaps in the 32-bit JVM. If you really want large heaps, switc...
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What's the difference between using “let” and “var”?

...le.log("My value: " + i); }; } for (var j = 0; j < 3; j++) { // and now let's run each one to see funcs[j](); } My value: 3 was output to console each time funcs[j](); was invoked since anonymous functions were bound to the same variable. People had to create immediately invoked function...
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How to 'insert if not exists' in MySQL?

...EY (`ensembl_transcript_id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; Now imagine that we have an automatic pipeline importing transcripts meta-data from Ensembl, and that due to various reasons the pipeline might be broken at any step of execution. Thus, we need to ensure two things: ...
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HtmlString vs. MvcHtmlString

...s a compatibility shim added to MVC 2 to support both .NET 3.5 and .NET 4. Now that MVC 3 is .NET 4 only, it's a fairly trivial subclass of HtmlString presumably for MVC 2->3 for source compatibility. If you're ever going to drop back to MVC 2 it might make sense to use IHtmlString or var for va...
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SQL/mysql - Select distinct/UNIQUE but return all columns?

... Krakow France Paris France Marseille Italy Milano Now the query SELECT country FROM locations GROUP BY country will result in: --country-- France Poland Italy However, the following query SELECT country, city FROM locations GROUP BY country ...throws an error in...