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How do I modify a MySQL column to allow NULL?

...isn't required, there's nothing wrong with providing it. The missing TABLE from the ALTER TABLE statement was the real problem. – SamStephens Nov 20 '14 at 20:38 ...
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How to use Jackson to deserialise an array of objects

... From Eugene Tskhovrebov List<MyClass> myObjects = Arrays.asList(mapper.readValue(json, MyClass[].class)) This solution seems to be the best for me ...
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What is causing the error `string.split is not a function`?

... Thank you. I didn't realized I converted my var from string to object. Your solution gave me an idea to check back my code. – sg552 Nov 16 '16 at 16:53 ...
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XML schema or DTD for logback.xml?

...i:noNamespaceSchemaLocation="http://www.padual.com/java/logback.xsd"> from GitHub "An XML Schema Definition for logback" https://github.com/nkatsar/logback-XSD share | improve this answer ...
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Drop a temporary table if it exists

... From SQL Server 2016 you can just use DROP TABLE IF EXISTS ##CLIENTS_KEYWORD On previous versions you can use IF OBJECT_ID('tempdb..##CLIENTS_KEYWORD', 'U') IS NOT NULL /*Then it exists*/ DROP TABLE ##CLIENTS_KEYWORD CRE...
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Can I use conditional statements with EJS templates (in JMVC)?

... Thank you! I was trying to display conditional elements from changes on the server. Your answer showed me that I needed to do have evaluate everything on the client. – buildpax Mar 11 '19 at 1:39 ...
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Java Reflection: How to get the name of a variable?

...to compiler optimizations). EDIT (related to comments): If you step back from the idea of having to use it as function parameters, here's an alternative (which I wouldn't use - see below): public void printFieldNames(Object obj, Foo... foos) { List<Foo> fooList = Arrays.asList(foos); ...
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In c++ what does a tilde “~” before a function name signify?

...it destroys the instance, frees up memory, etc. etc. Here's a description from ibm.com: Destructors are usually used to deallocate memory and do other cleanup for a class object and its class members when the object is destroyed. A destructor is called for a class object when that object passes ou...
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What is a .h.gch file?

...inedocs/gcc/Precompiled-Headers.html b) They contain "cached" information from .h files and should be updated every time you change respective .h file. If it doesn't happen - you have wrong dependencies set in your project ...
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Intersection of two lists in Bash

...indeed need to work with sorted list. And fortunately here we use ls which from ls Bash man page Sort entries alphabetically if none of -cftuSUX nor --sort. comm -12 <(ls one) <(ls two) Alternative with sort Intersection of two lists: sort <(ls one) <(ls two) | uniq -d symme...