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Creation timestamp and last update timestamp with Hibernate and MySQL
For a certain Hibernate entity we have a requirement to store its creation time and the last time it was updated. How would you design this?
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What is a serialVersionUID and why should I use it?
Eclipse issues warnings when a serialVersionUID is missing.
26 Answers
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C# Sort and OrderBy comparison
I can sort a list using Sort or OrderBy. Which one is faster? Are both working on same
algorithm?
7 Answers
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Android: ListView elements with multiple clickable buttons
I've a ListView where every element in the list contains a TextView and two different Buttons. Something like this:
8 Ans...
Error Code: 1005. Can't create table '…' (errno: 150)
I searched for a solution to this problem on the Internet and checked the Stack Overflow questions, but none of the solutions worked for my case.
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Resizing an iframe based on content
I am working on an iGoogle-like application. Content from other applications (on other domains) is shown using iframes.
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How can I remove duplicate rows?
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Assuming no nulls, you GROUP BY the unique columns, and SELECT the MIN (or MAX) RowId as the row to keep. Then, just delete everything that didn't have a row id:
DELETE FROM MyTable
LEFT OUTER JOIN (
SELECT MIN(RowId) as RowId...
How to display gpg key details without importing it?
...tory gpg key and would like to view the details of the gpg key as it comes in the file. Is this possible without importing it into a key ring?
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Web API Put Request generates an Http 405 Method Not Allowed error
Here's the call to the PUT method on my Web API - the third line in the method (I am calling the Web API from an ASP.NET MVC front end):
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How to add local jar files to a Maven project?
...w do I add local jar files (not yet part of the Maven repository) directly in my project's library sources?
31 Answers
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