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Computed / calculated / virtual / derived columns in PostgreSQL
...stgres 13, yet) .
Related:
Attribute notation for function call gives error
Until then, you can emulate VIRTUAL generated columns with a function using attribute notation (tbl.col) that looks and works much like a virtual generated column. That's a bit of a syntax oddity which exists in Pos...
getString Outside of a Context or Activity
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i get this error android.content.res.Resources$NotFoundException: String resource ID #0x7f0f0061
– Ebrahim Karimi
Aug 16 '19 at 8:45
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Convert a PHP script into a stand-alone windows executable
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I tried using your tool but I get the following error Cannot find myself (D:\Desktop\phpflexer\phpflexer.exe)
– Ghola
Jul 18 '18 at 8:24
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Bash continuation lines
... like a single string which crosses lines, while indenting but not getting all those spaces, one approach you can try is to ditch the continuation line and use variables:
$ a="continuation"
$ b="lines"
$ echo $a$b
continuationlines
This will allow you to have cleanly indented code at the expense ...
技术人员如何去面试？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...会感觉审判一般，会比较压抑，比较好的做法是两人侧面L角坐，这样不会彼此压抑，也方便交流。(本规则适合大部分面试，包括非技术职位)
如果是有些校园招聘，一般是在宾馆房间面试，普遍合理的面试官的做法是面试过程...
Threading pool similar to the multiprocessing Pool?
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I just found out that there actually is a thread-based Pool interface in the multiprocessing module, however it is hidden somewhat and not properly documented.
It can be imported via
from multiprocessing.pool import ThreadPool
It is implemented using a...
Why am I getting a NoClassDefFoundError in Java?
I am getting a NoClassDefFoundError when I run my Java application. What is typically the cause of this?
27 Answers
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MySQL “NOT IN” query
...T IN' list. You must choose a particular column. Otherwise you'll get this error: stackoverflow.com/questions/14046838/…
– Lorien Brune
Jun 1 '17 at 22:16
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javax.xml.bind.UnmarshalException: unexpected element (uri:“”, local:“Group”)
...to fix mine problem with iowatiger08 solution.
Here is my fix showing the error message to help join the dots for some.
Error message
javax.xml.bind.UnmarshalException: unexpected element
(uri:"http://global.aon.bz/schema/cbs/archive/errorresource/0",
local:"errorresource"). Expected eleme...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
... gcc-4.8 1.53s 1.52s -Os
In some cases you can alleviate the effect of disadvantageous optimizations by asking gcc to optimize for your particular processor (using options -mtune=native or -march=native):
Processor Compiler Time (-O2 -mtune=native) Time (-Os...