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What's the difference between RANK() and DENSE_RANK() functions in oracle?
...union all
select 11, 'nnn', 20000.00 from dual union all
select 11, 'mmm', 5000.00 from dual union all
select 12, 'kkk', 30000 from dual union all
select 10, 'fff', 40000 from dual union all
select 10, 'ddd', 40000 from dual union all
select 10, 'bbb', 50000 from dual union all
select 10, 'xxx', nul...
Get list of passed arguments in Windows batch script (.bat)
I'd like to find a Windows batch counterpart to Bash's $@ that holds a list of all arguments passed into a script.
14 An...
How to detect if CMD is running as Administrator/has elevated privileges?
From inside a batch file, I would like to test whether I'm running with Administrator/elevated privileges.
13 Answers
...
Plot two histograms on single chart with matplotlib
...ib.pyplot as plt
plt.style.use('seaborn-deep')
x = np.random.normal(1, 2, 5000)
y = np.random.normal(-1, 3, 2000)
bins = np.linspace(-10, 10, 30)
plt.hist([x, y], bins, label=['x', 'y'])
plt.legend(loc='upper right')
plt.show()
Reference: http://matplotlib.org/examples/statistics/histogram_dem...
What's the Hi/Lo algorithm?
...s are guaranteed to see unique consecutive values
Once a “hi” token is retrieved we only need the “incrementSize” (the number of “lo” entries)
The identifiers range is given by the following formula:
[(hi -1) * incrementSize) + 1, (hi * incrementSize) + 1)
and the “lo” value will ...
Convert Decimal to Double
...uble like this isn't necessary:
double trans = (double) trackBar1.Value / 5000.0;
Identifying the constant as 5000.0 (or as 5000d) is sufficient:
double trans = trackBar1.Value / 5000.0;
double trans = trackBar1.Value / 5000d;
...
How do you implement a class in C? [closed]
...eclarations, c for
implementations.
A simple example would be this:
/// Queue.h
struct Queue
{
/// members
}
typedef struct Queue Queue;
void push(Queue* q, int element);
void pop(Queue* q);
// etc.
///
share
...
node and Error: EMFILE, too many open files
... but wanted to avoid overwriting the fs module.
The module I wrote is Filequeue, and you use it just like fs:
var Filequeue = require('filequeue');
var fq = new Filequeue(200); // max number of files to open at once
fq.readdir('/Users/xaver/Downloads/xaver/xxx/xxx/', function(err, files) {
if...
Can I mask an input text in a bat file?
I am writing a batch file to execute some other programs. In this case I need to prompt for a password. Do I have any way to mask the input text? I don't need to print ******* characters instead of input characters. Linux's Password prompt behavior (Print nothing while typing) is enough.
...
Sending command line arguments to npm script
...ff webpack dev server:
"scripts": {
"start": "webpack-dev-server --port 5000"
},
We run this from the command line with npm start
Now if we want to pass in a port to the npm script:
"scripts": {
"start": "webpack-dev-server --port process.env.port || 8080"
},
running this and passing the...