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Setting default values for columns in JPA
Is it possible to set a default value for columns in JPA, and if, how is it done using annotations?
18 Answers
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C# catch a stack overflow exception
I have a recursive call to a method that throws a stack overflow exception. The first call is surrounded by a try catch block but the exception is not caught.
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How to remove part of a string before a “:” in javascript?
If I have a string Abc: Lorem ipsum sit amet , how can I use JavaScript/jQuery to remove the string before the : including the : . For example the above string will become: Lorem ipsum sit amet .
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When is del useful in python?
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One place I've found del useful is cleaning up extraneous variables in for loops:
for x in some_list:
do(x)
del x
Now you can be sure that x will be undefined if you use it outside the for loop.
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Safely limiting Ansible playbooks to a single machine?
I'm using Ansible for some simple user management tasks with a small group of computers. Currently, I have my playbooks set to hosts: all and my hosts file is just a single group with all machines listed:
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IIS - 401.3 - Unauthorized
I am trying to get started with using IIS. I created a new site on IIS Manager, mapped it to a folder on my file system and added index.html to the folder. I have set the port to 85 for this site. When I try to access http://localhost:85/index.html , I get the following error message:
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How to shrink the .git folder
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I'm using git more as synchronization mechanism than for version history. So my solution to this problem has been to make sure I have all my current sources in a satisfactory state, and then just delete .git and re-initialize the repos. Disk space problem solved. :...
Scatterplot with too many points
I am trying to plot two variables where N=700K. The problem is that there is too much overlap, so that the plot becomes mostly a solid block of black. Is there any way of having a grayscale "cloud" where the darkness of the plot is a function of the number of points in an region? In other words, ins...
Git rebase --continue complains even when all merge conflicts have been resolved
...you may lose your work (edited files)
– Youness Marhrani
Jul 8 '19 at 11:54
1
While --skip is the...
Twitter Bootstrap alert message close and open again
I have a problem with alert messages. It is displayed normally, and I can close it when the user presses x (close), but when the user tries to display it again (for example, click on the button event) then it is not shown. (Moreover, if I print this alert message to console, it is equal to [] .) ...