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ALTER TABLE without locking the table?
...n doing an ALTER TABLE statement in MySQL, the whole table is read-locked (allowing concurrent reads, but prohibiting concurrent writes) for the duration of the statement. If it's a big table, INSERT or UPDATE statements could be blocked for a looooong time. Is there a way to do a "hot alter", like ...
Memcache(d) vs. Varnish for speeding up 3 tier web architecture
...ache will provide info for pages that have a mixture of known and new data allowing you to generate pages faster.
An example that could apply to stackoverflow.com: adding this comment invalidated the page cache, so this page would have to be cleared from Varnish (and also my profile page, which pr...
How can Xcode 6 adaptive UIs be backwards-compatible with iOS 7 and iOS 6?
...se changed constraints are visible in the iPad Simulator running iOS 7.0.
All size class optimizations are made available to iOS 7, except size classes that have a Compact Height. This has been confirmed by Apple and is now stated directly in the documentation:
For apps supporting versions of iOS ...
How to make a DIV visible and invisible with JavaScript
...ffects:
Adjusting style.display will look as if element is not present at all ("removed").
elem.style.display = 'none'; // hide
elem.style.display = 'block'; // show - use this for block elements (div, p)
elem.style.display = 'inline'; // show - use this for inline elements (span, a)
or style.vi...
Select rows of a matrix that meet a condition
... How does this work if you don't want to specify the column names at all but want to work over all columns in the matrix?
– user5359531
Jul 22 '16 at 22:54
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How to count lines of Java code using IntelliJ IDEA?
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The Statistic plugin worked for me.
To install it from Intellij:
File - Settings - Plugins - Browse repositories... Find it on the list and double-click on it.
Open statistics window from:
View -> Tool Windows -> Statistic
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Error when testing on iOS simulator: Couldn't register with the bootstrap server
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As comment below says, you can usually see the hung process in Activity Monitor and kill it there.
– mxcl
Sep 5 '10 at 18:29
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Kill some processes by .exe file name
... kill a specific instance of a process? I mean, Contains("Spotify")) kills all the instances of Spotify. I want to kill a particular instance of Spotify.
– Banee Ishaque K
Feb 13 '18 at 5:17
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Notepad++ Multi editing
...d select the lines you want. Then type. The text you type is inserted on all of the lines you selected.
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How do you update Xcode on OSX to the latest version?
... Just want to also note that this will only show as an update if you installed your version directly from the App Store. However, if you installed it from elsewhere, you will need to re-download the entire new version of Xcode.
– CodeBiker
Aug 3 '13 at 20:39
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