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SQL JOIN vs IN performance?
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This Thread is pretty old but still mentioned often. For my personal taste it is a bit incomplete, because there is another way to ask the database with the EXISTS keyword which I found to be faster more often than not.
So if you a...
What file uses .md extension and how should I edit them?
On GitHub, several projects have README.md files. It seems like a simple format file to express text and pictures.
16 An...
How can I get a resource content from a static context?
I want to read strings from an xml file before I do much of anything else like setText on widgets, so how can I do that without an activity object to call getResources() on?
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Which is faster: multiple single INSERTs or one multiple-row INSERT?
...ment will save you an overhead of 7 per insert statement, which in further reading the text also says:
If you are inserting many rows from the same client at the same time, use INSERT statements with multiple VALUES lists to insert several rows at a time. This is considerably faster (many times ...
Browse and display files in a git repo without cloning
...u want would be lovely functionality if they could add it, but from what I read it's not very easy since getting history etc needs a lot of information to be local to git, and at that point you may as well have done a git fetch.
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How does a Linux/Unix Bash script know its own PID?
...SHPID | cat -
11656 31528
$ echo $$ $BASHPID
11656 11656
$ echo $$ | while read line; do echo $line $$ $BASHPID; done
11656 11656 31497
$ while read line; do echo $line $$ $BASHPID; done <<< $$
11656 11656 11656
sh...
Clone() vs Copy constructor- which is recommended in java [duplicate]
...w Foo();
//for all properties in FOo
f.set(foo.get());
return f;
}
Read more
http://adtmag.com/articles/2000/01/18/effective-javaeffective-cloning.aspx
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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...P/javascript_equality.html - the same graphs as above, but a bit easier to read.
– Lucy Bain
Dec 17 '14 at 22:50
@Just...
What is @ModelAttribute in Spring MVC?
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I know this is an old thread, but I thought I throw my hat in the ring and see if I can muddy the water a little bit more :)
I found my initial struggle to understand @ModelAttribute was a result of Spring's decision to combine several annotations ...
C/C++ check if one bit is set in, i.e. int variable
...gned int plays_golf : 1;
unsigned int watches_tv : 1;
unsigned int reads_books : 1;
};
struct preferences fred;
fred.likes_ice_cream = 1;
fred.plays_golf = 1;
fred.watches_tv = 1;
fred.reads_books = 0;
if (fred.likes_ice_cream == 1)
/* ... */
Also, there is a warning there:
How...