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MySQL select with CONCAT condition
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The aliases you give are for the output of the query - they are not available within the query itself.
You can either repeat the expression:
SELECT neededfield, CONCAT(firstname, ' ', lastname) as firstlast
FROM users
WHERE CONCAT(firstname, ' ', ...
Useful example of a shutdown hook in Java?
...Running" to false
(Optionally, .interrupt the working threads if they wait for data in some blocking call)
Wait for the working threads (executing writeBatch in your case) to finish, by calling the Thread.join() method on the working threads.
Terminate the program
Some sketchy code:
Add a static...
How to get the PATH environment-variable separator in Python?
... an executable search path, there is an os-dependent separator character. For Windows it's ';' , for Linux it's ':' . Is there a way in Python to get which character to split on?
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C++ convert vector to vector
... @MichaelGoldshteyn I don't understand - if you don't specify the size beforehand, then it will be resized automatically whenever the capacity is exceeded (which copies all the elements over and over again). Okay, this is amortized linear time, but I bet that's still a lot slower than a single 0-i...
How to compare two tags with git?
...e changed:
$ git diff tag1 tag2 --stat
and then look at the differences for some particular file:
$ git diff tag1 tag2 -- some/file/name
A tag is only a reference to the latest commit 'on that tag', so that you are doing a diff on the commits between them.
Also, a good reference: http://learn...
How can I break an outer loop with PHP?
I am looking to break an outer for/foreach loop in PHP.
6 Answers
6
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Should I use encoding declaration in Python 3?
Python 3 uses UTF-8 encoding for source-code files by default. Should I still use the encoding declaration at the beginning of every source file? Like # -*- coding: utf-8 -*-
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How can I keep my fork in sync without adding a separate remote?
Let's assume there is a repository someone/foobar on GitHub, which I forked to me/foobar .
6 Answers
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Regular expression: find spaces (tabs/space) but not newlines
How can I have a regular expression that tests for spaces or tabs but not newlines. I tried \s but found out that it tests for newlines too.
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Java 8 method references: provide a Supplier capable of supplying a parameterized result
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Good to know about that. Fortunately in my case, I'm using RuntimeExceptions, but this may not always be the case.
– hbobenicio
Jul 25 '17 at 15:15
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