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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...enerated, but it is not used in the changed row.
See demonstration below, tested with Percona Server 5.5.28. The configuration variable innodb_autoinc_lock_mode=1 (the default):
mysql> create table foo (id serial primary key, u int, unique key (u));
mysql> insert into foo (u) values (10);
m...
Export Data from mysql Workbench 6.0
...he begin of this line to comment it out
Save file and restart Workbench.
Tested on Windows 7 x64, MySQL 5.6.27 (MyISAM) & Workbench 6.3.5 x64.
Tested on OSX Yosemite 10.10.4, MySQL 5.5.27 (MyISAM), Workbench 6.3.5 build 201 CE x64.
...
How can I find all of the distinct file extensions in a folder hierarchy?
...file extension. Example: when we run from maindir it will fail for maindir/test.dir/myfile
– Nelson Teixeira
Apr 2 '17 at 5:52
1
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Determine Whether Integer Is Between Two Other Integers?
...ange (or xrange in python2) returns a generator thus you cannot repeatedly test on it.
– yegle
Mar 3 '14 at 16:44
25
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What is pip's equivalent of `npm install package --save-dev`?
... I found and wasn't able to use) it can handle many files and environments(test, dev, production, etc. ). It also has command to upgrade all/any of your dependencies.
installation
pipm install pkg-name
installation as development dependency
pipm install pkg-name --dev
installation as testing d...
Determining 32 vs 64 bit in C++
...if _WIN32 || _WIN64 … #elif __GNUC__ … #else # error "Missing feature-test macro for 32/64-bit on this compiler."?
– Davislor
Nov 29 '15 at 20:24
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Sorting multiple keys with Unix sort
...y numeric and dictionary order, columns 5 and after as dictionary order
~/test>sort -t, -k1,1n -k2,2n -k3,3d -k4,4n -k5d sort.csv
1,10,b,22,Ga
2,2,b,20,F
2,2,b,22,Ga
2,2,c,19,Ga
2,2,c,19,Gb,hi
2,2,c,19,Gb,hj
2,3,a,9,C
~/test>cat sort.csv
2,3,a,9,C
2,2,b,20,F
2,2,c,19,Gb,hj
2,2,c,19,Gb,hi
2,...
Maven: Command to update repository after adding dependency to POM
...ork.
You can use mvn compile to download compile time dependencies or mvn test for compile time and test dependencies but I prefer something that always works.
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...
Difference between shadowing and overriding in C#?
... reference and object must be of the same type.
class A
{
public void Test()
{
Console.WriteLine("base");
}
}
class B : A
{
public new void Test()
{
Console.WriteLine("sub");
}
public static void Main(string[] args)
{
A a = new A();
...
A proper wrapper for console.log with correct line number?
...cial object" so it stands out and looks mostly the same in FF and Chrome.
Testing in fiddle: http://jsfiddle.net/drzaus/pWe6W/
_log = (function (undefined) {
var Log = Error; // does this do anything? proper inheritance...?
Log.prototype.write = function (args) {
/// <summary&g...