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Finding all objects that have a given property inside a collection [duplicate]
... such as a Cat, which has many properties, such as age, favorite cat food, and so forth.
20 Answers
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Save PL/pgSQL output from PostgreSQL to a CSV file
...ing easy to re-use or automate, you can use Postgresql's built in COPY command. e.g.
Copy (Select * From foo) To '/tmp/test.csv' With CSV DELIMITER ',' HEADER;
This approach runs entirely on the remote server - it can't write to your local PC. It also needs to be run as a Postgres "superuser" (no...
How to get the process ID to kill a nohup process?
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When using nohup and you put the task in the background, the background operator (&) will give you the PID at the command prompt. If your plan is to manually manage the process, you can save that PID and use it later to kill the process i...
Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
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I think the -devel convention is for RPM and the -dev convention is for DEB. Try apt-cache search '^libfreetype.*-dev$' which gives libfreetype6-dev.
– Dietrich Epp
Dec 12 '13 at 3:09
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glob exclude pattern
I have a directory with a bunch of files inside: eee2314 , asd3442 ... and eph .
10 Answers
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How do I print debug messages in the Google Chrome JavaScript Console?
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Improving on Andru's idea, you can write a script which creates console functions if they don't exist:
if (!window.console) console = {};
console.log = console.log || function(){};
console.warn = console.warn || function(){};
console.err...
How to call a method after a delay in Android
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Kotlin
Handler(Looper.getMainLooper()).postDelayed({
//Do something after 100ms
}, 100)
Java
final Handler handler = new Handler(Looper.getMainLooper());
handler.postDelayed(new Runnable() {
@Override
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When and why are database joins expensive?
I'm doing some research into databases and I'm looking at some limitations of relational DBs.
7 Answers
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Application not picking up .css file (flask/python)
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I have read multiple threads and none of them fixed the issue that people are describing and I have experienced too.
I have even tried to move away from conda and use pip, to upgrade to python 3.7, i have tried all coding proposed and none of them fixed...
Assign output of a program to a variable using a MS batch file
...et VAR=%%i
Note that the first % in %%i is used to escape the % after it and is needed when using the above code in a batch file rather than on the command line. Imagine, your test.bat has something like:
for /f %%i in ('c:\cygwin64\bin\date.exe +"%%Y%%m%%d%%H%%M%%S"') do set datetime=%%i
echo %d...