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Insert new column into table in sqlite?
...aling with foreign keys.
My workaround is to export the database to a sql file making sure that the INSERT statements include column names. I do it using DB Browser for SQLite which has an handy feature for that. After that you just have to edit the create table statement and insert the new column ...
When do you use Java's @Override annotation and why?
...sert the annotations as default behavior, we get a lot of cluttered source files. When reading 1.6 code, you cannot see from the @Override annotation if a method actually overrides a method in the superclass or just implements an interface.
Using @Override when actually overriding a method in a sup...
Why does String.valueOf(null) throw a NullPointerException?
...
A bug, numbered 4867608 was filed for this way back in 2003, which was resolved as "won't fix" with this explanation.
We can't change this due to compatibility constraints. Note that it is
the public static String valueOf(char data[]) method which ends...
How to choose the right bean scope?
...ugh the specified collection of views registered in the flow configuration file. A @SessionScoped bean lives as long as the established HTTP session. An @ApplicationScoped bean lives as long as the web application runs. Note that the CDI @Model is basically a stereotype for @Named @RequestScoped, so...
What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
I used JSLint on a JavaScript file of mine. It threw the error:
8 Answers
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What requirement was the tuple designed to solve?
... moment it extends beyond simply a collection of values, it get's it's own file, and I move it out of the containing class.
So in retrospect, I believe I use Tuples when I don't want to go off and write a class, and just want to think about what I've writing right now. Which means the signature of...
Drop all the tables, stored procedures, triggers, constraints and all the dependencies in one sql st
...ct objects wish to create script
-> Select the choice to write script (File, New window, Clipboard)
It includes dependent objects by default.(and will drop constraint at first)
Execute the script
This way we can customize our script.
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What is the correct way to represent null XML elements?
...present in a previous version of your application.
So say you have an xml file from your application "ReportMaster" version 1.
Now in ReportMaster version 2 a some more attributes have been added that may or not be defined.
What is an xs:NCName type and when should it be used?
I ran one of my xml files through a schema generator and everything generated was what was expected, with the exception of one node:
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Is there any haskell function to concatenate list with separator?
...acter is also added to the end. (This makes it useful for serializing text files, which must per POSIX standard end with a trailing newline)
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