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Dynamically select data frame columns using $ and a character value

...and some variable names stored in a character vector cols . When I try to select a variable from mtcars using a dynamic subset of cols , nether of these work ...
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Django select only rows with duplicate field values

...ithout this, the subquery fails. The extra values tricks the ORM into only selecting the name column for the subquery. share | improve this answer | follow | ...
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Output window of IntelliJ IDEA cuts output [duplicate]

... the terminal shell path: File->Settings->Tools->Terminal from cmd.exe to: cmd.exe "/K mode con:cols=**500** lines=9999&cmd.exe" share | improve this answer | ...
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phpcms 启用手机门户(自动判断手机浏览器) - 更多技术 - 清泛网 - 专注C/...

...wserLanguage || navigator.language).toLowerCase() } if (GetQueryString('from') != 'mobile' && browser.versions.mobile) window.location.href = "https://www.tsingfun.com/index.php?m=wap"; </script> phpcms 手机门户 浏览器判断
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How do I create a SQL table under a different schema?

...er 2008 1. Navigate to Security &gt; Schemas 2. Right click on Schemas and select New Schema 3. Complete the details in the General tab for the new schema. Like, the schema name is "MySchema" and the schema owner is "Admin". 4. Add users to the schema as required and set their permissions: 5. Add an...
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libxml install error using pip

...ke sure the development packages of libxml2 and libxslt are installed ** From the lxml documentation, assuming you are running a Debian-based distribution : sudo apt-get install libxml2-dev libxslt-dev python-dev For Debian based systems, it should be enough to install the known build dependenc...
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Django MEDIA_URL and MEDIA_ROOT

...go 2.1 documentation: Serving files uploaded by a user during development from django.conf import settings from django.conf.urls.static import static urlpatterns = patterns('', # ... the rest of your URLconf goes here ... ) + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) You ...
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Replacing NULL with 0 in a SQL server query

...u want to replace a possibly null column with something else, use IsNull. SELECT ISNULL(myColumn, 0 ) FROM myTable This will put a 0 in myColumn if it is null in the first place. share | improve ...
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Including a groovy script in another groovy

... You must return an object from call one, then assign evaluate result to a variable. – LoganMzz Dec 5 '16 at 15:03 ...
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How to check all checkboxes using jQuery?

...}); Html should be : Single check box on checked three checkbox will be select and deselect. &lt;input type="checkbox" name="checkedAll" id="checkedAll" /&gt; &lt;input type="checkbox" name="checkAll" class="checkSingle" /&gt; &lt;input type="checkbox" name="checkAll" class="checkSingle" /&gt; ...