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How to execute a raw update sql with dynamic binding in rails
...e.connection.raw_connection.prepare("update table set f1=? where f2=? and f3=?")
st.execute(f1, f2, f3)
st.close
I'm not sure if there are other ramifications to doing this (connections left open, etc). I would trace the Rails code for a normal update to see what it's doing aside from the actual q...
MFC子窗口和父窗口（SetParent,SetOwner） - C/C++ - 清泛网 - 专注C/C++及内核技术
...者窗口最小化的时候，它所拥有的窗口都会被隐藏；
（3）当所有者窗口被销毁的时候，它所拥有的窗口都会被销毁。
需要注意的是，隐藏所有者窗口并不会影响它所拥有的窗口的可见状态。比如：如果窗口 A 拥有窗口B,窗口B...
Ruby on Rails - Import Data from a CSV file
...om it and put it into the existing table. I am using Ruby 1.9.2 and Rails 3.
11 Answers
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Converting NSString to NSDate (and back again)
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Swift 4 and later
Updated: 2018
String to Date
var dateString = "02-03-2017"
var dateFormatter = DateFormatter()
// This is important - we set our input date format to match our input string
// if the format doesn't match you'll get nil from your string, so be careful
dateFormatter.dateFormat...
Difference between addSubview and insertSubview in UIView class
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103
The only difference is in where the view is added: whether it is the frontmost view (addSubview...
Safely override C++ virtual functions
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edited Dec 27 '17 at 13:13
魔大农
6066 bronze badges
answered Jul 23 '12 at 9:37
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How can I check if an ip is in a network in Python?
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30
This article shows you can do it with socket and struct modules without too much extra effort. ...
How to fully remove Xcode 4
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edited Sep 14 '12 at 13:34
answered Mar 12 '11 at 20:27
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Simpler way to create dictionary of separate variables?
...] )
Example
>>> some= 1
>>> list= 2
>>> of= 3
>>> vars= 4
>>> dict( (name,eval(name)) for name in ['some','list','of','vars'] )
{'list': 2, 'some': 1, 'vars': 4, 'of': 3}
sha...
XAMPP - Port 80 in use by “Unable to open process” with PID 4! 12
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362
Open a CMD prompt as administrator and execute the following command:
net stop was /y
Open...