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When increasing the size of VARCHAR column on a large table could there be any problems?
...ll tables, but for large tables that are actively being queried this could block for a significant amount of time (as SQL server needs to see if it needs to truncate every row).
– CodeNaked
Oct 22 '14 at 20:54
...
How can I list (ls) the 5 last modified files in a directory?
...ently modified file first
head -6 will show 5 files because ls prints the block size in the first line of output.
I think this is a slightly more elegant and possibly more useful approach.
Example output:
total 26960312
-rw-r--r--@ 1 user staff 1.2K 11 Jan 11:22 phone2.7.py
-rw-r--r--@ 1 us...
In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...constant is required, string.Empty isn't even legal. This includes case "" blocks in switch statements, default values of optional parameters, parameters and properties in applying attributes, and a lot of other situations (left to the reader). So given that string.Empty is disallowed in some common...
Is !important bad for performance?
...mance really. Seeing firefox's CSS parser at /source/layout/style/nsCSSDataBlock.cpp#572 and I think that is the relevant routine, handling overwriting of CSS rules.
it just seems to be an simple check for "important".
if (aIsImportant) {
if (!HasImportantBit(aPropID))
changed = PR_TRU...
What does the arrow operator, '->', do in Java?
...s which is the same way as for methods and the lambda expression body is a block of code enclosed in braces.
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What is the worst gotcha in C# or .NET? [closed]
...w Thread(ts).Start();
}
}
}
Deferred execution of iterator blocks
This "poor man's unit test" doesn't pass - why not?
using System;
using System.Collections.Generic;
using System.Diagnostics;
class Test
{
static IEnumerable<char> CapitalLetters(string input)
{
...
Creating a system overlay window (always on top)
...
Following @Sam Lu's answer,
Indeed Android 4.x blocks certain types from listening to outside touch events, but some types, such as TYPE_SYSTEM_ALERT, still do the job.
Example
WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowMa...
When does static class initialization happen?
...never instantiate a class, but I access a static field, are ALL the static blocks and private static methods used to instantiate private static fields called (in order) at that instant?
...
Using Vim's persistent undo?
...ror when the directory exists. I have my command inside an if has('win32') block, so I just use mkdir without -p on Windows.
– Kyle Strand
Feb 18 '15 at 16:54
4
...
2 column div layout: right column with fixed width, left fluid
...n */
background: #e8f6fe;
/* the next props are meant to keep this block independent from the other floated one */
width: auto;
overflow: hidden;
}
Example here: http://jsfiddle.net/jackJoe/fxWg7/
sha...