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MySQL - why not index every field?
Recently I've learned the wonder of indexes, and performance has improved dramatically. However, with all I've learned, I can't seem to find the answer to this question.
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How do Google+ +1 widgets break out of their iframe?
Somehow, hovering over a Google+ plus-one widget can introduce a tooltip-type deal that is clearly larger than the <iframe> element in which it is contained. I’ve inspected the DOM to confirm this.*
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What are the default access modifiers in C#?
What is the default access modifier for classes, methods, members, constructors, delegates and interfaces?
9 Answers
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How can I select rows with most recent timestamp for each key value?
I have a table of sensor data. Each row has a sensor id, a timestamp, and other fields. I want to select a single row with latest timestamp for each sensor, including some of the other fields.
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How to serialize a lambda?
How can I elegantly serialize a lambda?
5 Answers
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Sleep until a specific time/date
I want my bash script to sleep until a specific time. So, I want a command like "sleep" which takes no interval but an end time and sleeps until then.
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How to have Emacs auto-refresh all buffers when files have changed on disk?
I have a non-emacs global search and replace function that causes my disk files to become more up-to-date than my emacs buffers (en masse). Is there any way to tell emacs to refresh all the buffers from disk in one fell swoop, instead of having to do each one individually by reloading the file?
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AngularJS - convert dates in controller
Could anyone please suggest me how to convert date from this 1387843200000 format into this 24/12/2013 inside my controller ?
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Installing python module within code
I need to install a package from PyPi straight within my script.
Maybe there's some module or distutils ( distribute , pip etc.) feature which allows me to just execute something like pypi.install('requests') and requests will be installed into my virtualenv.
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How can I perform a culture-sensitive “starts-with” operation from the middle of a string?
I have a requirement which is relatively obscure, but it feels like it should be possible using the BCL.
3 Answers
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