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Schema for a multilanguage database
...
Then you can get the value by XPath-Query in SQL, where you can put the string-variable in
filemeta.value('(/lang//' + @in_language + '/node())[1]', 'nvarchar(MAX)') AS bla
And you can update the value like this:
UPDATE YOUR_TABLE
SET YOUR_XML_FIELD_NAME.modify('replace value of (/lang/de/tex...
Static Indexers?
...tionManager;
}
public class ConfigurationManager
{
public object this[string value]
{
get => new object();
set => // set something
}
}
Now you can call Utilities.ConfigurationManager["someKey"] using indexer notation.
...
How to write DataFrame to postgres table?
... the table
conn = engine.raw_connection()
cur = conn.cursor()
output = io.StringIO()
df.to_csv(output, sep='\t', header=False, index=False)
output.seek(0)
contents = output.getvalue()
cur.copy_from(output, 'table_name', null="") # null values become ''
conn.commit()
...
What does “coalgebra” mean in the context of programming?
...y and setPosition function:
class C
private
x, y : Int
_name : String
public
name : String
position : (Int, Int)
setPosition : (Int, Int) → C
We need two parts to represent this class. First, we need to represent the internal state of the object; in this case ...
How to fix Python indentation
...s of white-space containing a
<Tab> with new strings of white-space using the new
tabstop value given. If you do not specify a new
tabstop size or it is zero, Vim uses the current value
of 'tabstop...
How to print an exception in Python?
...
In case you want to pass error strings, here is an example from Errors and Exceptions (Python 2.6)
>>> try:
... raise Exception('spam', 'eggs')
... except Exception as inst:
... print type(inst) # the exception instance
... print ins...
Size of Matrix OpenCV
..., may be helpful for the beginners
#include <iostream>
#include <string>
#include "opencv/highgui.h"
using namespace std;
using namespace cv;
int main()
{
cv:Mat M(102,201,CV_8UC1);
int rows = M.rows;
int cols = M.cols;
cout<<rows<<" "<<cols<<e...
How to pass command line arguments to a rake task
...
Also, make sure you enclose the argument in string. e.g from your command line run the rake task like so rake thing:work'[1,2,3]'
– theterminalguy
Jan 14 '17 at 8:01
...
Best practices for circular shift (rotate) operations in C++
...n-circular shifts work on that target.
Current x86 compilers still use an extra instruction to mask a variable count for 8 and 16-bit rotates, probably for the same reason they don't avoid the AND on ARM. This is a missed optimization, because performance doesn't depend on the rotate count on any ...
Is there a way to iterate over a slice in reverse in Go?
...nicer in my sense.
package main
import (
"fmt"
)
func reverse(lst []string) chan string {
ret := make(chan string)
go func() {
for i, _ := range lst {
ret <- lst[len(lst)-1-i]
}
close(ret)
}()
return ret
}
func main() {
elms := []str...