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SQL Joins Vs SQL Subqueries (Performance)?
... quicker, mainly because you have an equivalence and an explicit JOIN. In my experience IN is a very slow operator, since SQL normally evaluates it as a series of WHERE clauses separated by "OR" (WHERE x=Y OR x=Z OR...).
As with ALL THINGS SQL though, your mileage may vary. The speed will depend...
Error - Unable to access the IIS metabase
After installing Visual Studio 2012 and opening my solution I get a series of errors in this form:
37 Answers
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How does SSL really work?
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Note: I wrote my original answer very hastily, but since then, this has turned into a fairly popular question/answer, so I have expanded it a bit and made it more precise.
TLS Capabilities
"SSL" is the name that is most often used to re...
How to manage local vs production settings in Django?
...setdefault("DJANGO_SETTINGS_MODULE", "projectname.settings.production") in my wsgi.py file? Also, I've set the environmental var using: export DJANGO_SETTINGS_MODULE=projectname.settings.local, but then it is lost when I close the terminal. What can I do to ensure it is saved? Should I add that li...
How to overcome “datetime.datetime not JSON serializable”?
... is about getting good at reading documentation and storing enough info in my head to recognise where and when I need to retrieve it again. In this case, one might say "Oh a custom object with json" and then quickly refresh on that usage
– jdi
Jul 2 '15 at 19:1...
Git push branch from one remote to another?
...in/one -> one
So origin/BRANCHNAME:refs/heads/BRANCHNAME
Checking in my rorg remote:
pat@host /tmp/rorg (BARE:master)
$ git graph --all
* 5750bca (HEAD, master) c
| * 13fd55a (one) b
|/
* 822e0de a
share
|
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How to run a PowerShell script
...t to appear
Navigate to the directory where the script lives
PS> cd C:\my_path\yada_yada\ (enter)
Execute the script:
PS> .\run_import_script.ps1 (enter)
What am I missing??
Or: you can run the PowerShell script from cmd.exe like this:
powershell -noexit "& ""C:\my_path\yada_yada\r...
How do I restore a missing IIS Express SSL Certificate?
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Works for me too, but in my case the certificate was there. Not sure why, but that resulted in same error. So i've removed certificate, and 'repair' reinstalled this back, and voila. Thanks alot.
– Darius
Sep 30...
Application Loader stuck at “Authenticating with the iTunes store” when uploading an iOS app
...rted happening to me today (May 2017) and no answers in this thread solved my issue. The resolution for me was from here;
https://forums.developer.apple.com/thread/76803
Open Terminal. Change to home directory,
cd ~
Move the current transporter directory,
mv .itmstransporter/ .old_itmstransp...
Quickly reading very large tables as dataframes
...e is a lot of logic in the implementation that would slow things down. In my case, I am assuming I know the types of the columns ahead of time, the table does not contain any column headers or row names, and does not have any pathological characters that I have to worry about.
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