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PHP PDO returning single row
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Most optimized if you use "LIMIT 1" in your prepare statement.
– mjspier
Mar 28 '11 at 9:06
2
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What's the difference between std::move and std::forward
... both these functions simply cast to reference type. But outside these specific use cases (which cover 99.9% of the usefulness of rvalue reference casts), you should use static_cast directly and write a good explanation of what you're doing.
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
...code (full compiler optimizations), and switching from iostreams to OS-specific I/O APIs and custom buffer management does give an order of magnitude improvement.
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Creating Threads in python
...arg):
for i in range(arg):
print("running")
sleep(1)
if __name__ == "__main__":
thread = Thread(target = threaded_function, args = (10, ))
thread.start()
thread.join()
print("thread finished...exiting")
Here I show how to use the threading module to create a t...
Why do I get “Pickle - EOFError: Ran out of input” reading an empty file?
...ot empty first:
import os
scores = {} # scores is an empty dict already
if os.path.getsize(target) > 0:
with open(target, "rb") as f:
unpickler = pickle.Unpickler(f)
# if file is not empty scores will be equal
# to the value unpickled
scores = unpickle...
Why doesn't Java allow to throw a checked exception from static initialization block?
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You CAN handle this exception, if you are doing dynamic class loading yourself, with Class.forName(..., true, ...); Granted, this is not something you come across very often.
– LadyCailin
Dec 18 '12 at 21:25
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Nesting await in Parallel.ForEach
In a metro app, I need to execute a number of WCF calls. There are a significant number of calls to be made, so I need to do them in a parallel loop. The problem is that the parallel loop exits before the WCF calls are all complete.
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How do I find out what keystore my JVM is using?
I need to import a certificate into my JVM keystore. I am using the following:
10 Answers
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Android dex gives a BufferOverflowException when building
When compiling a specific Android project, and only on my Windows machine, I get a java.nio.BufferOverflowException during from dex. The problem occurs both when using Eclipse and when using Ant.
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redirect COPY of stdout to log file from within bash script itself
...&1
echo "foo"
echo "bar" >&2
Note that this is bash, not sh. If you invoke the script with sh myscript.sh, you will get an error along the lines of syntax error near unexpected token '>'.
If you are working with signal traps, you might want to use the tee -i option to avoid disrupt...