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Return 0 if field is null in MySQL
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Use IFNULL:
IFNULL(expr1, 0)
From the documentation:
If expr1 is not NULL, IFNULL() returns expr1; otherwise it returns expr2. IFNULL() returns a numeric or string value, depending on the context in which it is used.
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UPDATE and REPLACE part of a string
... so the following should work:
UPDATE dbo.xxx
SET Value = REPLACE(Value, '123\', '')
WHERE ID <=4
(I also added the \ in the replace as I assume you don't need that either)
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Defining an abstract class without any abstract methods
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How to uninstall Jenkins?
...syslog.d/jenkins.conf
pkgutil --pkgs | grep 'org\.jenkins-ci\.' | xargs -n 1 sudo pkgutil --forget
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CATALINA_OPTS vs JAVA_OPTS - What is the difference?
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How does generic lambda work in C++14?
How does generic lambda work ( auto keyword as an argument type) in C++14 standard?
3 Answers
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Web Application Problems (web.config errors) HTTP 500.19 with IIS7.5 and ASP.NET v2
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edited Oct 7 '15 at 19:19
David Ferenczy Rogožan
16.7k88 gold badges6262 silver badges6363 bronze badges
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How to change highlighted occurrences color in Eclipse's sidebar?
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175
The color in the bar is the same as the color the text is highlighted with in the editor. It i...