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fork() branches more than expected?
...ignores the return value, it makes no difference.)
So, at first, there is one process. That creates a second process, both of which print a dot and loop. On their second iteration, each creates another copy, so there are four processes print a dot, and then exit. So we can easily account for six...
How do I delete everything in Redis?
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Heads up that FLUSHALL may be overkill. FLUSHDB is the one to flush a database only. FLUSHALL will wipe out the entire server. As in every database on the server. Since the question was about flushing a database I think this is an important enough distinction to merit a separate...
Java volatile reference vs. AtomicReference
...erence itself is implemented using Unsafe.
So, when is it good to choose one over the other:
Only need get/set? Stick with a volatile field, simplest solution and lowest overhead.
Need the extra functionality? If this is a performance(speed/memory overhead) sensitive part of your code make a cho...
HTML5 best practices; section/header/aside/article elements
... the "best practices". Tags like section/headers/article are new, and everyone has different opinions about when/where you should use these tags. So what do you guys think of the following layout and code?
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When to use which design pattern? [closed]
...design patterns very much, but I find it difficult to see when I can apply one. I have read a lot of websites where design patterns are explained. I do understand the most of them, but I find it difficult to recognize a pattern in my own situations.
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How do I turn a C# object into a JSON string in .NET?
...here is online tool to convert your classes to json format, hope helps someone.
– shaijut
Jan 25 '17 at 8:24
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mkdir's “-p” option
So this doesn't seem like a terribly complicated question I have, but it's one I can't find the answer to. I'm confused about what the -p option does in Unix. I used it for a lab assignment while creating a subdirectory and then another subdirectory within that one. It looked like this:
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First-time database design: am I overengineering? [closed]
...e more answers to your questions:
1) You're pretty much on target for someone who is approaching a problem like this for the first time. I think the pointers from others on this question thus far pretty much cover it. Good job!
2 & 3) The performance hit you will take will largely be dependen...
Using pg_dump to only get insert statements from one table within database
I'm looking for a way to get all rows as INSERT statements from one specific table within a database using pg_dump in PostgreSQL.
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What's the difference between the data structure Tree and Graph?
... a DAG).
So Trees are DAGs with the restriction that a child can only have one parent.
One thing that is important to point out, Trees aren't a recursive data structure.
They can not be implemented as a recursive data structure because of the above restrictions. But any DAG implementation, which a...