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Multiple Updates in MySQL
...but not MyISAM.
Code to run the tests is as follows. It also outputs .SQL files to remove php interpreter overhead
<?
//Variables
$NumRows=30000;
//These 2 functions need to be filled in
function InitSQL()
{
}
function RunSQLQuery($Q)
{
}
//Run the 3 tests
InitSQL();
for($i=0;$i<3;$i++)
...
Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
...ppen if you have messed up the /home/<username>/.ssh/authorized_keys file on your EC2 instance.
About 2., the information about which username you should use is often lacking from the AMI Image description. But you can find some in AWS EC2 documentation, bullet point 4. :
http://docs.aws.am...
How to fix the flickering in User controls
...ation
Add the CreateParams declaration to your application's main form .h file e.g.
class TYourMainFrom : public TForm
{
protected:
virtual void __fastcall CreateParams(TCreateParams &Params);
}
and add this to your .cpp file
void __fastcall TYourMainForm::CreateParams(TCreateParams &am...
Warning the user/local/mysql/data directory is not owned by the mysql user
... chown -RL mysql:mysql /usr/local/mysql/data
sudo /usr/local/mysql/support-files/mysql.server start
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How to convert Linux cron jobs to “the Amazon way”?
...ntainer name. "
You can now create an environment containing a cron.yaml file that configures scheduling tasks:
version: 1
cron:
- name: "backup-job" # required - unique across all entries in this file
url: "/backup" # required - does not need to be unique
schedule: "0 *...
Function return value in PowerShell
... second; > and < are already used for I/O stream redirection to/from files. >= writes stdout to a file called =.
– TessellatingHeckler
Oct 11 '15 at 2:51
...
How do I combine two data frames?
...f each time, you can instead use a list comprehension:
frames = [ process_file(f) for f in dataset_files ]
result = pd.append(frames)
(as pointed out here in the docs at the bottom of the section):
Note: It is worth noting however, that concat (and therefore append)
makes a full copy of the...
How to get the parents of a merge commit in git?
...
You can also use git-parents github.com/danielribeiro/dotfiles/blob/master/bin/git-parents. Just put it in your PATH and call $ git parents <commit> (<commit> defaults to HEAD)
– Daniel Ribeiro
Oct 8 '13 at 23:40
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What is the difference between dict.items() and dict.iteritems() in Python2?
...method:
>>> next(d.items())
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: list object is not an iterator
As an iterator, d.iteritems() is not slice-able:
>>> i1=d.iteritems()[0]
Traceback (most recent call last):
File "<std...
How to write one new line in Bitbucket markdown?
...
I'd never do this because all text files should have stripped whitespace everywhere (except the trailing newline). Using meaningful space in this way is too implicit.
– AndiDog
Sep 4 '17 at 20:24
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