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Rails 3 execute custom sql query without a model
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How about this :
@client = TinyTds::Client.new(
:adapter => 'mysql2',
:host => 'host',
:database => 'siteconfig_development',
:username => 'username',
:password => 'password'
sql = "SELECT * FROM users"
result = @client.execute(sql)
results.each d...
Edit the root commit in Git?
...t you have a clean working tree, you can do the following.
# checkout the root commit
git checkout <sha1-of-root>
# amend the commit
git commit --amend
# rebase all the other commits in master onto the amended root
git rebase --onto HEAD HEAD master
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Pointer arithmetic for void pointer in C
...s arguments to
functions, return values from
functions, and members of unions.
So this means that printf("%s", x) has the same meaning whether x has type char* or void*, but it does not mean that you can do arithmetic on a void*.
Editor's note: This answer has been edited to reflect the final...
Subqueries vs joins
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Here's an example of how subqueries are evaluated in MySQL 6.0.
The new optimizer will convert this kind of subqueries into joins.
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Python - Get path of root project structure
I've got a python project with a configuration file in the project root.
The configuration file needs to be accessed in a few different files throughout the project.
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Remove duplicate elements from array in Ruby
... which is a data structure that usually has no repeat values. Using a | a (union) would do the same trick.
– Cezar
Aug 11 '13 at 3:58
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互联网健身的火爆：技术驱动是内因 资本只是点缀 - 资讯 - 清泛网 - 专注C/...
...网健身的创业者们来讲是亟待解决的问题。无论创业者们如何解决这些问题，“业余是细流，专业是大坝”这个基本的原则才是保证整个产品科学发展的关键因素。
改变四：比赛还是要打的，关键是怎么打
对于很多日常的健...
为什么说自媒体到了最危险的时期？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...、资金等需求只是第一个层面的需求，更深层次的需求是如何找到适合自己的发展道路，平台不仅仅是输血，更多是要引导和一起探索。
目前能够做这件事情的，只有BAT。在现有BAT的布局中，阿里热衷于投资媒体，百度目前有...
Read only file system on Android
I recently rooted my Droid X and everything seems to be working perfectly. I made some changes to build.prop and when I do adb push build.prop /system/ I get the following error: failed to copy 'c:\build.prop' to '/system//build.prop': Read-only file system .
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Is there a way to call a stored procedure with Dapper?
...like '%'+@keyword+'%'
-- WHERE
-- parentid = @parentid
UNION ALL
SELECT
p.EventCategoryID as Id, cast(p.Title + '>>' + c.name as varchar(max)) as Name,
c.IdHierarchy + cast(p.EventCategoryID as char(5)),p.ParentID
FROM
EventCategory p ...