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SQL Joins Vs SQL Subqueries (Performance)?
...PECT the first query to be 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 va...
A reference to the dll could not be added
...
The following worked for me:
Short answer
Run the following via command line (cmd):
TlbImp.exe cvextern.dll //where cvextern.dll is your dll you want to fix.
And a valid dll will be created for you.
Longer answer
Open cmd
Find TlbImp.exe. Probably located in C:\Program Files (x86...
PG::ConnectionBad - could not connect to server: Connection refused
... was started (even though it isn't running, it just didn't get to shutdown and delete the PID).
To fix it remove/rename the PID file. Find the postgres data directory. On macOS using homebrew it is in /usr/local/var/postgres/,
or /usr/local/var/log/ other systems it might be /usr/var/postgres/.
T...
How to install the current version of Go in Ubuntu Precise
...e GVM for managing my Go versions in my Ubuntu box. Pretty simple to use, and if you're familiar with RVM, it's a nobrainer. It allows you to have multiple versions of Go installed in your system and switch between whichever version you want at any point in time.
Install GVM with:
sudo apt-get i...
How to use http.client in Node.js if there is basic authorization
...eld in the header.
It contains the authentication type Basic in this case and the username:password combination which gets encoded in Base64:
var username = 'Test';
var password = '123';
var auth = 'Basic ' + Buffer.from(username + ':' + password).toString('base64');
// new Buffer() is deprecated ...
TortoiseSVN icons not showing up under Windows 7
I can't seem to get the icons to display under Windows 7 and I really miss this from Windows XP.
31 Answers
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Detecting design mode from a Control's constructor
... this doesn't work in OnPaint, you may check this condition in constructor and store it in a class field.
– IMil
Apr 6 '16 at 18:37
3
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Command line CSV viewer? [closed]
Anyone know of a command-line CSV viewer for Linux/OS X? I'm thinking of something like less but that spaces out the columns in a more readable way. (I'd be fine with opening it with OpenOffice Calc or Excel, but that's way too overpowered for just looking at the data like I need to.) Having ...
Calling a function of a module by using its name (a string)
...e in a Python program. For example, let's say that I have a module foo , and I have a string whose content is "bar" . What is the best way to call foo.bar() ?
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GIT commit as different user without email / or only email
...s a different user, but i do not have a valid email address, following command is not working for me:
10 Answers
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