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Creating Multifield Indexes in Mongoose / MongoDB
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194
You call the index method on your Schema object to do that as shown here. For your case it wo...
Rails 3 datatypes?
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edited Oct 31 '17 at 19:07
Xcodian Solangi
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Can you do greater than comparison on a date in a Rails 3 search?
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answered Nov 19 '10 at 11:43
Simone CarlettiSimone Carletti
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Using Rails 3.1 assets pipeline to conditionally use certain css
I’m in the process of building my first solo Rails app using Rails 3.1.rc5. My problem is that I want to have my site render the various CSS files conditionally. I’m using Blueprint CSS and I’m trying to have sprockets/rails render screen.css most of the time, print.css only when printing,...
Why does X[Y] join of data.tables not allow a full outer join, or a left join?
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To quote from the data.table FAQ 1.11 What is the difference between X[Y] and merge(X, Y)?
X[Y] is a join, looking up X's rows using Y (or Y's key if it has one) as an index.
Y[X] is a join, looking up Y's rows using X (or X's key if it has one)
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汇编语言（王爽著）附书签 - 文档下载 - 清泛网 - 专注C/C++及内核技术
...的命令。
这是一本入门的汇编语言教材
关于内容：1、内容真的是做到了深入浅出（书是给人看的，别人看懂了才是最关键的）。2、有的地方看的出来是老师自己的感悟（不像其它国内大多数的书，就知道东抄一点西搬一点...
Set default value of an integer column SQLite
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edited Sep 14 '14 at 16:09
answered Jul 12 '13 at 14:46
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T-SQL stored procedure that accepts multiple Id values
...skog has maintained the authoritative answer to this question for the last 16 years: Arrays and Lists in SQL Server.
There are at least a dozen ways to pass an array or list to a query; each has their own unique pros and cons.
Table-Valued Parameters. SQL Server 2008 and higher only, and probabl...
Bash script - variable content as a command to run
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217
You just need to do:
#!/bin/bash
count=$(cat last_queries.txt | wc -l)
$(perl test.pl test2 $c...
How would I get a cron job to run every 30 minutes?
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edited Sep 27 '11 at 13:45
Tim Cooper
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