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What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
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Assuming you are avoiding nulls, they are all ways of writing an anti-join using Standard SQL.
An obvious omission is the equivalent using EXCEPT:
SELECT a FROM table1
EXCEPT
SELECT a FROM table2
Note in Oracle you need to use the MINUS oper...
Is there an interpreter for C? [closed]
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the ROOT project provides a very functional C and C++ interpreter called Cint. I'm quite fond of it. It takes a little getting used to interpretively, though.
TCC is a very good choice as well, but i'm not able to vouch for its REPL
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Command not found error in Bash variable assignment
I have this script called test.sh:
5 Answers
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Do HTML WebSockets maintain an open connection for each client? Does this scale?
...urces. Often setting up the connection can be expensive but maintaining an idle connection it is almost free. The first limitation that is usually encountered is the maximum number of file descriptors (sockets consume file descriptors) that can be open simultaneously. This often defaults to 1024 but...
How much space can your BitBucket account have?
... they allow you to have unlimited public/private repositories. However, I didn't find the size limit of your account? Does anyone know where to find it? Github offered 300mb if I remember correctly.
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What are the “standard unambiguous date” formats for string-to-date conversion in R?
Please consider the following
5 Answers
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UIScrollView scroll to bottom programmatically
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I presume its to avoid the setContentOffset call if it isn't going to do anything?
– i_am_jorf
Nov 15 '11 at 16:30
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Converting bytes to megabytes
...e multiplier 1000 is mostly used with the unit bits. But often people then call 2048 kBit/s equal to 2 MBit/s - confusing eh?
So as a general rule, don't trust bit/byte units at all ;)
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impr...
Android adb not found
...also removes the misleading 'not a dynamic executable' message of ldd when calling ldd on a 32 bit dynamic executable.
Now you have to install missing 32 bit libraries the binaries under adt-bundle-linux/sdk/platform-tools are linked against:
# yum install zlib.i686 libstdc++.i686 ncurses-libs.i68...
What are the best JVM settings for Eclipse? [closed]
...launcher.defaultAction
openFile
This tells the launcher that if it is called with a command line that only contains arguments that don't start with "-", then those arguments should be treated as if they followed "--launcher.openFile".
eclipse myFile.txt
This is the kind of command line t...