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How do I get SUM function in MySQL to return '0' if no values are found?
...table
WHERE ...
To see it in action, please see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
SQL Fiddle
MySQL 5.5.32 Schema Setup:
CREATE TABLE foo
(
id INT NOT NULL AUT...
Remove non-utf8 characters from string
...ility is to use single-quote strings, but then you will have to remove the comments.
– Markus Jarderot
Apr 9 '10 at 2:59
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How to set thousands separator in Java?
... edited Jun 29 '15 at 11:18
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answered Mar 16 '11 at 10:14
Andreas DolkAndreas...
Decimal number regular expression, where digit after decimal is optional
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edited Sep 7 '14 at 13:01
answered May 26 '14 at 14:10
H...
Read a zipped file as a pandas DataFrame
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https://www.kaggle.com/jboysen/quick-gz-pandas-tutorial
Please follow this link.
import pandas as pd
traffic_station_df = pd.read_csv('C:\\Folders\\Jupiter_Feed.txt.gz', compression='gzip',
header=1, ...
Margin while printing html page
...html body element, which is normally controlled by the browser. See http://www.w3.org/TR/1998/REC-CSS2-19980512/page.html.
This currently works in all major browsers except Safari.
In Internet explorer, the margin is actually set to this value in the settings for this printing, and if you do Previe...
How can I kill a process by name instead of PID?
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pkill firefox
More information: http://linux.about.com/library/cmd/blcmdl1_pkill.htm
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android button selector
...;/selector>
For more information i implemented using this link
http://www.blazin.in/2016/03/how-to-use-selectors-for-botton.html
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How do you get a string from a MemoryStream?
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This decision was mitigated later on: msdn.microsoft.com/en-us/library/…
– Mark Sowul
Feb 3 '16 at 20:13
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UITextField auto-capitalization type - iPhone App
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