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How do I install the OpenSSL libraries on Ubuntu?
I'm trying to build some code on Ubuntu 10.04 LTS that uses OpenSSL 1.0.0. When I run make, it invokes g++ with the "-lssl" option. The source includes:
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How do I convert a numpy array to (and display) an image?
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240
You could use PIL to create (and display) an image:
from PIL import Image
import numpy as np
w...
How to avoid the “divide by zero” error in SQL?
... by zero" error we have programmed it like this:
Select Case when divisor=0 then null
Else dividend / divisor
End ,,,
But here is a much nicer way of doing it:
Select dividend / NULLIF(divisor, 0) ...
Now the only problem is to remember the NullIf bit, if I use the "/" key.
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How to do version numbers? [closed]
...e "unstable watchout" on there. So how would you go about versioning? Is 1.0 stable? Should the build date be in the version number? Tell me what you guys think!
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.NET 4.0 has a new GAC, why?
...the new GAC . Does it mean now we have to manage two GACs, one for .NET 2.0-3.5 applications and the other for .NET 4.0 applications?
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Enable 'xp_cmdshell' SQL Server
...f the xp_cmdshell MSDN docs:
http://msdn.microsoft.com/en-us/library/ms190693.aspx:
-- To allow advanced options to be changed.
EXEC sp_configure 'show advanced options', 1
GO
-- To update the currently configured value for advanced options.
RECONFIGURE
GO
-- To enable the feature.
EXEC sp_config...
Why do indexes in XPath start with 1 and not 0?
...with VBScript with its odd features such as 1-based index instead of 0-based indexes like almost every other language has, the reasoning being that it was a language for users (e.g. Excel VBA) instead of a language for developers.
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How do I specify multiple targets in my podfile for my Xcode project?
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CocoaPods 1.0 has changed the syntax for this. It now looks like this:
def shared_pods
pod 'SSKeychain', '~> 0.1.4'
pod 'INAppStoreWindow', :head
pod 'AFNetworking', '1.1.0'
pod 'Reachability', '~> 3.1.0'
pod ...
Add unique constraint to combination of two columns
...g an exception (exceptions are expensive).
http://www.sqlperformance.com/2012/08/t-sql-queries/error-handling
http://www.mssqltips.com/sqlservertip/2632/checking-for-potential-constraint-violations-before-entering-sql-server-try-and-catch-logic/
If you want to prevent exceptions from bubbling up ...
RegEx to parse or validate Base64 data
...sion to match Base64 encoded words, you can use the following:
^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$
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