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SQL Server indexes - ascending or descending, what difference does it make?
...
This primarily matters when used with composite indexes:
CREATE INDEX ix_index ON mytable (col1, col2 DESC);
can be used for either:
SELECT *
FROM mytable
ORDER BY
col1, col2 DESC
or:
SELECT *
FROM mytable
ORDER BY
col1 DESC, col2
, but not for:
SELECT *
FROM ...
Use HTML5 to resize an image before upload
... var canvas = document.createElement('canvas'),
max_size = 544,// TODO : pull max size from a site config
width = image.width,
height = image.height;
if (width > height) {
if (width > max_size) ...
OS detecting makefile
...was adding OS/CPU auto-detection happened to be using.
ifeq ($(OS),Windows_NT)
CCFLAGS += -D WIN32
ifeq ($(PROCESSOR_ARCHITEW6432),AMD64)
CCFLAGS += -D AMD64
else
ifeq ($(PROCESSOR_ARCHITECTURE),AMD64)
CCFLAGS += -D AMD64
endif
ifeq ($(PROCESS...
How to get overall CPU usage (e.g. 57%) on Linux [closed]
... + idle = 100%. So maybe something like: grep 'cpu ' /proc/stat | awk '{cpu_usage=($2+$4)*100/($2+$4+$5)} END {print cpu_usage "%"}'
– vimdude
Jun 2 '14 at 18:51
...
How can I make the cursor turn to the wait cursor?
...ow level.
A typical use case can look like below:
private void button1_Click(object sender, EventArgs e)
{
try
{
this.Enabled = false;//optional, better target a panel or specific controls
this.UseWaitCursor = true;//from the Form/Window instance
...
Render Partial View Using jQuery in ASP.NET MVC
... it to a method that returns the data as JSON, datatables.net/examples/data_sources/server_side.html
– tvanfosson
Feb 27 '14 at 12:50
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show...
How to get a random number in Ruby
... for a full blown framework:
require 'securerandom'
p SecureRandom.random_number(100) #=> 15
p SecureRandom.random_number(100) #=> 88
p SecureRandom.random_number #=> 0.596506046187744
p SecureRandom.random_number #=> 0.350621695741409
p SecureRandom.hex #=> "eb693ec8252cd630102fd...
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
...se 4-byte UTF8 with Connector/J configure the MySQL server with
character_set_server=utf8mb4. Connector/J will then use that setting
as long as characterEncoding has not been set in the connection
string. This is equivalent to autodetection of the character set.
Adjust your columns and datab...
How can I append a string to an existing field in MySQL?
I want to update the code on all my record to what they currently are plus _standard any ideas?
2 Answers
...
Capturing touches on a subview outside the frame of its superview using hitTest:withEvent:
...esult;
}
}
return nil;
}
SWIFT 3
override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
if clipsToBounds || isHidden || alpha == 0 {
return nil
}
for subview in subviews.reversed() {
let subPoint = subview.convert(point, from: ...