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INSERT INTO … SELECT FROM … ON DUPLICATE KEY UPDATE
I'm doing an insert query where most of many columns would need to be updated to the new values if a unique key already existed. It goes something like this:
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Effect of a Bitwise Operator on a Boolean in Java
...s are supposed to travel variables and operate on them bit by bit. In the case of integers, longs, chars this makes sense. These variables can contain the full range of values enforced by their size.
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What is the difference between .map, .every, and .forEach?
I've always wondered what the difference between them were. They all seem to do the same thing...
4 Answers
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How do you get current active/default Environment profile programmatically in Spring?
I need to code different logic based on different current Environment profile. How can you get the current active and default profiles from Spring?
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AsyncTaskLoader vs AsyncTask
Since Honeycomb and the v4 Compatibility Library it is possible to use AsyncTaskLoader . From what I understand, the AsyncTaskLoader can survive through config changes like screen flips.
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Qt: *.pro vs *.pri
What is the difference between *.pro and *.pri configuration files for qmake?
3 Answers
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How do I create an immutable Class?
I am working on creating an immutable class.
I have marked all the properties as read-only.
6 Answers
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Should I use Python 32bit or Python 64bit
...e a win7 64bit installation. Must I use Python 64bit? What are the differences between the 32bit and 64bit Python versions anyway? Do different Python packages (such as south, django, mysqldb etc) support only 32bit/64bit?
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Converting PKCS#12 certificate into PEM using OpenSSL
I have OpenSSL x64 on Windows 7 which I downloaded from openssl-for-windows on Google Code . I'm attempting to run:
5 Answ...
Access to Modified Closure (2)
This is an extension of question from Access to Modified Closure . I just want to verify if the following is actually safe enough for production use.
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