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Count the number of occurrences of a string in a VARCHAR field?
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answered Sep 10 '12 at 2:56
yannisyannis
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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
...ere was no difference in optimization or performance of SQL-89 versus SQL-92 style joins. One can assume that most RDBMS engines transform the syntax into an internal representation before optimizing or executing the query, so the human-readable syntax makes no difference.
I also try to evangelize...
Invalid date format specification in gemspec
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edited Feb 19 '12 at 21:27
answered Sep 3 '11 at 3:22
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What is the benefit of using $() instead of backticks in shell scripts?
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An example, though somewhat contrived:
deps=$(find /dir -name $(ls -1tr 201112[0-9][0-9]*.txt | tail -1l) -print)
which will give you a list of all files in the /dir directory tree which have the same name as the earliest dated text file from December 2011 (a).
Another example would be somethi...
Python memoising/deferred lookup property decorator
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12
For all sorts of great utilities I'm using boltons.
As part of that library you have cachedprop...
How to have an auto incrementing version number (Visual Studio)? [duplicate]
...tribute to end with an asterisk, for example:
[assembly: AssemblyVersion("2.10.*")]
Visual studio will increment the final number for you according to these rules (thanks galets, I had that completely wrong!)
To reference this version in code, so you can display it to the user, you use reflectio...
adding multiple entries to a HashMap at once in one statement
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262
You can use the Double Brace Initialization as shown below:
Map<String, Integer> hashMap...
Set environment variables from file of key/value pairs
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How to find out which processes are using swap space in Linux?
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81M of swap, but it also reports my system as a whole is using only 2M
of swap. Therefore, I will not add a similar Swap column to htop
because I don't know a reliable way to get this information (actually,
I don't think it's possible to get an exact number, because of shared
pages).
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VS2013 permanent CPU usage even though in idle mode
I've recently updated VS2013 to Update 1 and since then VS takes CPU usage to 25% (on a 4 cores intel i5 cpu) permanently even though it's supposed to be idle. I thought it has some unfinished background processes so I left it running for a while but it keeps using the cpu when it's supposed to be i...