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Datatype for storing ip address in SQL Server
...S
BEGIN
DECLARE @str AS VARCHAR(15)
SELECT @str = CAST( CAST( SUBSTRING( @ip, 1, 1) AS INTEGER) AS VARCHAR(3) ) + '.'
+ CAST( CAST( SUBSTRING( @ip, 2, 1) AS INTEGER) AS VARCHAR(3) ) + '.'
+ CAST( CAST( SUBSTRING( @ip, 3, 1) AS INTEGER) AS VARCHAR(3) ) + '.'
...
Fastest check if row exists in PostgreSQL
...f a single row from the batch exists in the table because then I know they all were inserted.
8 Answers
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Callback to a Fragment from a DialogFragment
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return new AlertDialog.Builder(getActivity())
.setTitle(R.string.ERROR)
.setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton(R.string.ok_button,
new DialogInterface.OnClickListener() {
public void onClick...
Why does Stream not implement Iterable?
... great code-noise. But then this is Java and we have tolerated the List<String> list = new ArrayList(Arrays.asList(array)) for a long time :) Although the powers that be could just offer us all List<String> list = array.toArrayList(). But the real absurdity, is that by encouraging ever...
Working with UTF-8 encoding in Python source [duplicate]
...f-8 -*-
....
It is described in the PEP 0263:
Then you can use UTF-8 in strings:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
u = 'idzie wąż wąską dróżką'
uu = u.decode('utf8')
s = uu.encode('cp1250')
print(s)
This declaration is not needed in Python 3 as UTF-8 is the default source e...
Storing WPF Image Resources
...re]");
Method:
static internal ImageSource doGetImageSourceFromResource(string psAssemblyName, string psResourceName)
{
Uri oUri = new Uri("pack://application:,,,/" +psAssemblyName +";component/" +psResourceName, UriKind.RelativeOrAbsolute);
return BitmapFrame.Create(oUri);
}
Learnings:...
How to format a float in javascript?
In JavaScript, when converting from a float to a string, how can I get just 2 digits after the decimal point? For example, 0.34 instead of 0.3445434.
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Measuring text height to be drawn on Canvas ( Android )
...ght = bounds.height();
As you can see for the following images, different strings will give different heights (shown in red).
These differing heights could be a disadvantage in some situations when you just need a constant height no matter what the text is. See the next section.
Paint.FontMetrics
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Providing white space in a Swing GUI
... private final int hGap = 5;
private final int vGap = 5;
private String[] borderConstraints = {
BorderLayout.PAGE_START,
BorderLayout.LINE_START,
BorderLayout.CENTER,
BorderLayout.LINE_END,
BorderLayout.PAGE_END
};
private JButton[] buttons;...
How do I rename a column in a database table using SQL?
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Specifically for SQL Server, use sp_rename
USE AdventureWorks;
GO
EXEC sp_rename 'Sales.SalesTerritory.TerritoryID', 'TerrID', 'COLUMN';
GO
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