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mysql -> insert into tbl (select from another table) and some default values [duplicate]
... '1', citydb.city_name, NULL, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP) select test.cities.city as city_name from test.cities as citydb; i am using this query it give me error can any one help me to solve this error?
– Chintan Mathukiya
Apr 7 at 12:57
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Minimal web server using netcat
... of executing a bash
$ while true; do { echo -e 'HTTP/1.1 200 OK\r\n'; sh test; } | nc -l 8080; done
NOTE: This command was taken from: http://www.razvantudorica.com/08/web-server-in-one-line-of-bash
this executes bash script test and return the result to a browser client connecting to the serve...
Bitwise operation and usage
...
One typical usage:
| is used to set a certain bit to 1
& is used to test or clear a certain bit
Set a bit (where n is the bit number, and 0 is the least significant bit):
unsigned char a |= (1 << n);
Clear a bit:
unsigned char b &= ~(1 << n);
Toggle a bit:
unsigned char ...
Factory Pattern. When to use factory methods?
...ere are other reasons why using separate Factories can be beneficial (e.g. testability) but I find this specific use case to illustrate best how Factory classes can be useful.
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How to benchmark efficiency of PHP script
...r.
Hopefully all of the above can help show that carefully isolated 'lab' testing will not reflect the variables and problems that you will encounter in production, and that you must identify what your high level goal is and then what you can do to get there, before heading off down the micro/prema...
How do I create a Java string from the contents of a file?
...or the encodings required of all Java runtimes:
String content = readFile("test.txt", StandardCharsets.UTF_8);
The platform default is available from the Charset class itself:
String content = readFile("test.txt", Charset.defaultCharset());
Note: This answer largely replaces my Java 6 version. Th...
Difference between return and exit in Bash functions
...o "We are still here"
exitfunc
echo "We will never see this"
Output
$ ./test.sh
this is retfunc()
We are still here
this is exitfunc()
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follo...
Sqlite or MySql? How to decide? [closed]
... ensure that multiple processes don't screw the file up). It's really well tested and I like it a lot.
Also, if you aren't able to choose this correctly by yourself, you probably need to hire someone on your team who can.
s...
Normalizing mousewheel speed across browsers
...120; // IE/Safari/Chrome TODO: /3 for Chrome OS X
};
You can test out this code on your own browser here: http://phrogz.net/JS/wheeldelta.html
Suggestions for detecting and improving the behavior on Firefox and Chrome on OS X are welcome.
Edit: One suggestion from @Tom is to simply c...
Why can't I use switch statement on a String?
...the hash code of the label. The corresponding case is an if statement that tests string equality; if there are collisions on the hash, the test is a cascading if-else-if. The second switch mirrors that in the original source code, but substitutes the case labels with their corresponding positions. T...