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Increment a value in Postgres
...the current value is indeed 203 (and not accidently increase it again) you can also add another condition:
UPDATE totals
SET total = total + 1
WHERE name = 'bill'
AND total = 203;
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Pandas timeseries plot setting x-axis major and minor ticks and labels
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Both pandas and matplotlib.dates use matplotlib.units for locating the ticks.
But while matplotlib.dates has convenient ways to set the ticks manually, pandas seems to have the focus on auto formatting so far (you can have a look at the code for date conversion and formatting in pan...
How can I change the text inside my with jQuery?
...s inside the span');
if you want to change the text inside the span, you can use:
$('#abc span').text('goes inside the span');
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Trying to fire the onload event on script tag
... you need to check readystate for IE support. If you are using jQuery, you can also try the getScript() method: http://api.jquery.com/jQuery.getScript/
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Is there a Java standard “both null or equal” static method?
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With Java 7 you can now directly do a null safe equals:
Objects.equals(x, y)
(The Jakarta Commons library ObjectUtils.equals() has become obsolete with Java 7)
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Ruby on Rails: getting the max value from a DB column
Currently I can make the straight-up SQL query on my DB:
2 Answers
2
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Format an Integer using Java String Format
...eans that the number will be zero-filled if it is less than three (in this case) digits.
See the Formatter docs for other modifiers.
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Placing an image to the top right corner - CSS
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You can just do it like this:
#content {
position: relative;
}
#content img {
position: absolute;
top: 0px;
right: 0px;
}
<div id="content">
<img src="images/ribbon.png" class="ribbon"/>
<...
How to convert BigDecimal to Double in Java?
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You can convert BigDecimal to double using .doubleValue(). But believe me, don't use it if you have currency manipulations. It should always be performed on BigDecimal objects directly. Precision loss in these calculations are bi...
Is “ ” a replacement of “ ”?
In my ASP.NET application, I was trying to add few white spaces between two text boxes by typing space bar. The equivalent HTML source was &#160; instead of &nbsp; . So I just wanted to check: is this the new replacement for white space? If yes, any idea why they changed?
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