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Calculate the median of a billion numbers
...r sending data over a network to be faster than sorting it (let alone just selecting the median) it needs to be a pretty damn fast network. Might be a better prospect if the network can be presumed to be instantaneous, for example if you have 100 cores with equal access to RAM containing the data.
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Shortcut to comment out a block of code with sublime text
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The shortcut to comment out or uncomment the selected text or current line:
Windows: Ctrl+/
Mac: Command ⌘+/
Linux: Ctrl+Shift+/
Alternatively, use the menu: Edit > Comment
For the block comment you may want to use:
Windows: Ctrl+Shift+/
Mac: Command ⌘+Opt...
Copy all the lines to clipboard
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on Mac
copy selected part: visually select text(type v or V in normal
mode) and type :w !pbcopy
copy the whole file :%w !pbcopy
past from the clipboard :r !pbpaste
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Where can I find and submit bug reports on Google's Chrome browser?
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From the Google Site
Click the Page menu page menu.
Select Report a bug or broken website.
Choose an issue type from the drop-down menu. The web address of the webpage you're on is recorded automatically.
If possible, add key details in the 'Description' field, including steps...
Efficiently updating database using SQLAlchemy ORM
...ill basically run the same SQL statement as the previous snippet, but also select the changed rows and expire any stale data in the session. If you know you aren't using any session data after the update you could also add synchronize_session=False to the update statement and get rid of that select....
App.Config Transformation for projects which are not Web Projects in Visual Studio?
...="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="/configuration/appSettings">
<xsl:copy>
<xsl:apply-templates select="node()|@*"/>
<xsl:element name="add"&g...
How to create materialized views in SQL Server?
...able expressions are not allowed... In fact if you have any ordering in subselects or derived tables (such as with partition by clause), you are out of luck too.
That leaves only very simple scenarios to be utilizing indexed views, something in my opinion can be optimized by creating proper indexes...
git stash apply version
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git stash list
then select the stash to apply and use only number:
git stash apply 1
share
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improve this answer
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fo...
deciding among subprocess, multiprocessing, and thread in Python?
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To understand how this is possible one should read about the features of select() (which can be built around the select() or poll() or similar OS system calls).
Basically it's all driven by the ability to make a request of the OS to sleep pending any activity on a list of file descriptors or some ...
How do I remove a single file from the staging area (undo git add)?
...ve the staged files. Guess I've been looking at that screen so long I was selectively choosing what I wanted to see.
– PHLAK
Oct 1 '09 at 20:34
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