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How to change column datatype from character to numeric in PostgreSQL 8.4
...nding on your data):
alter table presales alter column code type numeric(10,0) using code::numeric;
-- Or if you prefer standard casting...
alter table presales alter column code type numeric(10,0) using cast(code as numeric);
This will fail if you have anything in code that cannot be cast to num...
Guards vs. if-then-else vs. cases in Haskell
...and guards should almost always be used instead.
let absOfN =
if n < 0 -- Single binary expression
then -n
else n
Every if..then..else expression can be replaced by a guard if it is at the top level of a function, and this should generally be preferred, since you can add more cases more...
Handling Touch Event in UILabel and hooking it up to an IBAction
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Scott PersingerScott Persinger
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How to make gradient background in android
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answered Dec 18 '12 at 10:11
Gunnar KarlssonGunnar Karlsson
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How do I rename all files to lowercase?
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answered Oct 16 '11 at 20:39
wjlwjl
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How are cookies passed in the HTTP protocol?
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302
The server sends the following in its response header to set a cookie field.
Set-Cookie:name=v...
jQuery How to Get Element's Margin and Padding?
...ry - I can get an elements formatted total padding and margin etc ? i.e. 30px 30px 30px 30px or 30px 5px 15px 30px etc
8 A...
How to escape braces (curly brackets) in a format string in .NET
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10 Answers
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Passing route control with optional parameter after root in express?
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190
That would work depending on what client.get does when passed undefined as its first parameter.
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CSS transition effect makes image blurry / moves image 1px, in Chrome?
...
2020 update
If you have issues with blurry images, be sure to check answers from below as well, especially the image-rendering CSS property.
For best practice accessibility and SEO wise you could replace the background imag...