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INSERT INTO … SELECT FROM … ON DUPLICATE KEY UPDATE
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This is the right answer for queries with COUNT, GROUP etc.. Thanks.
– Kostanos
Jun 26 '15 at 16:28
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How do I measure execution time of a command on the Windows command line?
... In case you want to use internal dos commands (eg.: dir, echo, del, etc.) don't forget to insert "cmd /c": Measure-Command { cmd /c dir /s c:\windows > nul }
– LietKynes
Jan 10 '12 at 10:49
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Should JAVA_HOME point to JDK or JRE?
... developer, you should point your JAVA_HOME at jdk to access javac copiler etc. It's good if you can test your program to run on the JRE though. If you are using an app server you often also need the JDK instead of the JRE but that depends on the particular server.
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Creating email templates with Django
...to, at some point, switch from using django templates to using a mailchimp etc. set of templates for transactional, templated emails for my own project). It is still a work-in-progress though, but for the example above, you would do:
from templated_email import send_templated_mail
send_templated_ma...
How to create a new language for use in Visual Studio
...guage service", which is the entity that handles colorizing, intellisense, etc. for a given file extension/type.
For an intro, see this article
And for a code sample see here
Regarding parsing, there are lots of technologies, and I won't offer an opinion/advice.
Beware, there is a fair amount of ...
How can I rename a database column in a Ruby on Rails migration?
...f your app running, say in different environments or on multiple computers etc, managing edited migrations is a major pain. I only edit a migration if I just created it and realized it was wrong, and haven't run it literally anywhere else yet.
– Yetanotherjosh
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What's the difference between compiled and interpreted language?
...g machine's machine code. So how's that different from a VM (python or JVM etc.) doing the same in case of an interpreted language?
– qre0ct
Jun 23 at 10:28
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Get Unix Epoch Time in Swift
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If you don't want to import Foundation, i.e. for Linux use etc, you can use the following from CoreFoundation:
import CoreFoundation
let timestamp = CFAbsoluteTimeGetCurrent() + kCFAbsoluteTimeIntervalSince1970
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Best way to check if a Data Table has a null value in it
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You can null/blank/space Etc value using LinQ
Use Following Query
var BlankValueRows = (from dr1 in Dt.AsEnumerable()
where dr1["Columnname"].ToString() == ""
|| dr1["Columnna...
Vagrant stuck connection timeout retrying
... startup to select whether I wanted to boot directly to ubuntu or safemode etc.
To turn on the GUI you have to put this in your vagrant config Vagrantfile:
config.vm.provider :virtualbox do |vb|
vb.gui = true
end
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