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SQL UPDATE all values in a field with appended string CONCAT not working
...; select * from t;
+------+-------+
| id | data |
+------+-------+
| 1 | max |
| 2 | linda |
| 3 | sam |
| 4 | henry |
+------+-------+
4 rows in set (0.02 sec)
mysql> update t set data=concat(data, 'a');
Query OK, 4 rows affected (0.01 sec)
Rows matched: 4 Changed: 4 Warnin...
What is the easiest way to ignore a JPA field during persistence?
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edited Dec 20 '13 at 7:14
Andrey Atapin
6,69433 gold badges2525 silver badges3434 bronze badges
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How can I use Homebrew to install both Python 2 and 3 on Mac?
...utomatically for Bash upon startup, add that line to your ~/.bash_profile. 1
Usage:
Once you have installed pyenv and activated it, you can install different versions of python and choose which one you can use. Example:
$ pyenv install 2.7.5
You can check the versions you have installed with:
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How do I show multiple recaptchas on a single page?
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17 Answers
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How to sum up elements of a C++ vector?
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11 Answers
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How to completely uninstall Visual Studio 2010?
... find a CLEAN solution to completely and ultimately remove Visual Studio 2010 from my computer. When you install Visual Studio, it also installs a bunch of programs (about 55) in the add/remove programs panel ( appwiz.cpl ).
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Can I get a patch-compatible output from git-diff?
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139
If you want to use patch you need to remove the a/ b/ prefixes that git uses by default. You c...
Why do access tokens expire?
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answered Aug 12 '11 at 5:28
Eran HammerEran Hammer
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FixedThreadPool vs CachedThreadPool: the lesser of two evils
I have a program that spawns threads (~5-150) which perform a bunch of tasks. Originally, I used a FixedThreadPool because this similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the thr...