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How can I trim all strings in an Array? [duplicate]
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@ime: that's what it expected to return actually. Garbage-in garbage-out paradigm in action.
– zerkms
Jun 17 '14 at 10:50
4
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How to create user for a db in postgresql? [closed]
I have installed PostgreSQL 8.4 on my CentOS server and connected to root user from shell and accessing the PostgreSQL shell.
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How to check postgres user and password? [closed]
... you may create a new user or set a new password to the existing user.
Usually, you can login as the postgres user:
Open a Terminal and do sudo su postgres.
Now, after entering your admin password, you are able to launch psql and do
CREATE USER yourname WITH SUPERUSER PASSWORD 'yourpassword';
T...
Postgresql - change the size of a varchar column to lower length
I have a question about the ALTER TABLE command on a really large table (almost 30 millions rows).
One of its columns is a varchar(255) and I would like to resize it to a varchar(40) .
Basically, I would like to change my column by running the following command:
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Configuring Log4j Loggers Programmatically
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You can add/remove Appender programmatically to Log4j:
ConsoleAppender console = new ConsoleAppender(); //create appender
//configure the appender
String PATTERN = "%d [%p|%c|%C{1}] %m%n";
console.setLayout(new PatternLayout(PATTERN));
console.setThresh...
Should I instantiate instance variables on declaration or in the constructor?
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There is no difference - the instance variable initialization is actually put in the constructor(s) by the compiler.
The first variant is more readable.
You can't have exception handling with the first variant.
There is additionally the initialization block, which is as well put in the constru...
App.Config Transformation for projects which are not Web Projects in Visual Studio?
... transform a web.config, but
while they feels intuitively right it's actually very verbose.
Here's two transforms, one using XSLT and the same one using the XML
Document Transform syntax/namespace. As with all things there's
multiple ways in XSLT to do this, but you get the general idea. ...
Create a submodule repository from a folder and keep its git commit history
...ommit it
git filter-branch --subdirectory-filter <directory 1> -- --all
You should now have a git repository with the files from directory 1 in your repo's root with all related commit history.
Step 4
Create your online repository and push your new repository!
git remote add origin <...
Epoch vs Iteration when training neural networks
...twork terminology:
one epoch = one forward pass and one backward pass of all the training examples
batch size = the number of training examples in one forward/backward pass. The higher the batch size, the more memory space you'll need.
number of iterations = number of passes, each pass using [bat...
Find all files with name containing string
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Use find:
find . -maxdepth 1 -name "*string*" -print
It will find all files in the current directory (delete maxdepth 1 if you want it recursive) containing "string" and will print it on the screen.
If you want to avoid file containing ':', you can type:
find . -maxdepth 1 -name "*string*...