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When do I need to use a semicolon vs a slash in Oracle SQL?
...nits" of work (creating a PL/SQL object, running a PL/SQL anonymous block, and executing a DML statement) can be picked out more easily by eye.
Also, if you eventually move to something like Ant for deployment it will simplify the definition of targets to have a consistent statement delimiter.
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How can I update the current line in a C# Windows Console App?
...pletion, I'd just like to update the value on the same line as the cursor, and not have to put each percentage on a new line.
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Understanding CUDA grid dimensions, block dimensions and threads organization (simple explanation) [
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Hardware
If a GPU device has, for example, 4 multiprocessing units, and they can run 768 threads each: then at a given moment no more than 4*768 threads will be really running in parallel (if you planned more threads, they will be waiting their turn).
Software
threads are organized in bloc...
How to easily resize/optimize an image size with iOS?
My application is downloading a set of image files from the network, and saving them to the local iPhone disk. Some of those images are pretty big in size (widths larger than 500 pixels, for instance). Since the iPhone doesn't even have a big enough display to show the image in its original size, I'...
@property retain, assign, copy, nonatomic in Objective-C
...to Objective-C can someone give me an overview of the retain, assign, copy and any others I'm missing, that follow the @property directive? What are they doing and why would I want to use one over another?
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Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
...n's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C library functions.
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Difference between timestamps with/without time zone in PostgreSQL
...g to the process of inserting/retrieving values. But readers should understand that both data types, timestamp with time zone and timestamp without time zone, in Postgres do *not actually store time zone information. You can confirm this with a glance at the data type doc page: Both types takes up t...
Git repository broken after computer died
My computer went dead and now one of my git repositories is broken. When I try to checkout master it tells me:
15 Answers
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How to make ruler always be shown in Sublime text 2?
I use Sublime Text 2 and want a Ruler to be shown in every file with specific line-height. But I have to show it manually in every file.
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Making Python loggers output all messages to stdout in addition to log file
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All logging output is handled by the handlers; just add a logging.StreamHandler() to the root logger.
Here's an example configuring a stream handler (using stdout instead of the default stderr) and adding it to the root logger:
import logging
imp...