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Index on multiple columns in Ruby on Rails

...th=\"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 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
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Is there an equivalent to 'continue' in a Parallel.ForEach?

...th=\"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 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
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How to subtract 2 hours from user's local time?

...th=\"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 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
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Removing non-repository files with git?

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How do I install an R package from source?

...ory (note the type="source"): install.packages("RJSONIO", repos = "http://www.omegahat.org/R", type="source") share | improve this answer | follow | ...
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What are FTL files

... which might help: http://freemarker.org/docs/ Tutorials: http://www.vogella.com/tutorials/FreeMarker/article.html http://viralpatel.net/blogs/freemaker-template-hello-world-tutorial/ share | ...
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Oracle SQL escape character (for a '&')

...GADORES_AGREGADORES (IDAGREGADOR,NOMBRE,URL) values (2,'Netvibes', 'http://www.netvibes.com/subscribe.php?type=rss' || chr(38) || 'amp;url='); share | improve this answer | ...
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How to remove a key from HashMap while iterating over it? [duplicate]

...t.println("Changed HashMap : "+hashMap); } } Source : http://www.tutorialdata.com/examples/java/collection-framework/hashmap/remove-mapping-of-specified--key-from-hashmap share | impro...
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Freezing Row 1 and Column A at the same time

...icking "Freeze Panes". Visual Aid on Freeze Panes in Excel 2010 - http://www.dummies.com/how-to/content/how-to-freeze-panes-in-an-excel-2010-worksheet.html Microsoft Reference Guide (More Complicated, but resourceful none the less) - http://office.microsoft.com/en-us/excel-help/freeze-or-lock-row...
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phpcms与ucenter整合常见问题与解答 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...ord]\t$member[uid]", 'ENCODE'), $cookietime); }else { // www.jbxue.com $username = $get['username']; $query = DB::query("SELECT uid, username, password, email FROM ".DB::table('ucenter_members')." WHERE username='$username'"); $member = DB::fe...