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How to select records from last 24 hours using SQL?
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101
SELECT *
FROM table_name
WHERE table_name.the_date > DATE_SUB(CURDATE(), INTERVAL 1 DAY)
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How is Generic Covariance & Contra-variance Implemented in C# 4.0?
...7/10/16/covariance-and-contravariance-in-c-part-one/
The videos:
https://www.youtube.com/watch?v=3MQDrKbzvqU
https://www.youtube.com/watch?v=XRIadQaBYlI
https://www.youtube.com/watch?v=St9d2EDZfrg
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Python “extend” for a dictionary
...date() by moving some stuff around, but it would be nicer if it could be accomplished in only one line...
– Nearoo
Jan 6 '16 at 16:28
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HTML5 Canvas vs. SVG vs. div
....0;
nodes = [];
// create svg:
var svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
svg.setAttribute('style', 'border: 1px solid black');
svg.setAttribute('width', '6000');
svg.setAttribute('height', '6000');
svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink",
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What are all the valid self-closing elements in XHTML (as implemented by the major browsers)?
...d as
text/html should be treated as HTML and not as XHTML.
It's a very common pitfall, because W3C Validator largely ignores that rule, but browsers follow it religiously. Read
Understanding HTML, XML and XHTML from WebKit blog:
In fact, the vast majority of supposedly XHTML documents on th...
Numbering rows within groups in a data frame
...df$val to seq_len(nrow(df)). I just ran into this over here: stackoverflow.com/questions/42796857/…
– Frank
Mar 14 '17 at 22:07
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Do sealed classes really offer performance Benefits?
I have come across a lot of optimization tips which say that you should mark your classes as sealed to get extra performance benefits.
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How can I export tables to Excel from a webpage [closed]
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Java Friends</title>
</head>
<body>
<table style="font-weight: bold"&g...
How To Set Up GUI On Amazon EC2 Ubuntu server
.../community/VNC/Clients
In the vnc client, give public DNS plus ":1" (e.g. www.example.com:1). Enter the vnc login password. Make sure to use a normal connection. Don't use the key files.
Additional guide available here: http://www.serverwatch.com/server-tutorials/setting-up-vnc-on-ubuntu-in-the-am...