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Mercurial for Beginners: The Definitive Practical Guide
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22 Answers
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Return 0 if field is null in MySQL
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332
Use IFNULL:
IFNULL(expr1, 0)
From the documentation:
If expr1 is not NULL, IFNULL() retur...
DateTime.ToString() format that can be used in a filename or extension?
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answered Sep 19 '12 at 17:44
Kristof ClaesKristof Claes
9,86933 gold badges2727 silver badges4141 bronze badges
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How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
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262
If you're using SQL Server 2005, you could use the FOR XML PATH command.
SELECT [VehicleID]
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What is the relationship between the docker host OS and the container base image OS?
...cker that I can get my hands on I see that I can install Docker on Ubuntu 12.04 (for example) and then I can install a Fedora container or a different version of ubuntu? (there is an example where the user installed busybox in the container.)
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How to force keyboard with numbers in mobile website in Android
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answered Nov 30 '10 at 12:33
Richard KernahanRichard Kernahan
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How can I remove non-ASCII characters but leave periods and spaces using Python?
...ring. with funny characters'
string.printable on my machine contains:
0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~ \t\n\r\x0b\x0c
EDIT: On Python 3, filter will return an iterable. The correct way to obtain a string back would be:
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What does “1 line adds whitespace errors” mean when applying a patch?
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128
You don't need to care.
The warning enacts a standard of cleanliness of text files in regard t...
How to copy from CSV file to PostgreSQL table with headers in CSV file?
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edited Aug 31 '15 at 12:46
Willi Mentzel
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