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SQL JOIN - WHERE clause vs. ON clause
...der and its lines, if any, for order number 12345. The second will return all orders, but only order 12345 will have any lines associated with it.
With an INNER JOIN, the clauses are effectively equivalent. However, just because they are functionally the same, in that they produce the same results...
How exactly does CMake work?
...g about what exactly what was going on behind the scenes when for such a small CMakeLists.txt file
3 Answers
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What is a simple command line program or script to backup SQL server databases?
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There's a good script to backup all user databases in one go here: mssqltips.com/tip.asp?tip=1070
– Marnix van Valen
Sep 22 '09 at 14:47
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How to remove indentation from an unordered list item?
I want to remove all indentation from ul . I tried setting margin , padding , text-indent to 0 , but no avail. Seems that setting text-indent to a negative number does the trick - but is that really the only way to remove the indentation?
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what is the difference between OLE DB and ODBC data sources?
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Actually sometimes OLE DB wraps the ODBC driver, sometimes it doesn't. See here
– bobobobo
Apr 11 '12 at 2:42
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What is the difference between Python and IPython?
... load into your own projects.
Easy to use, high performance tools for parallel computing.
Note that the first 2 lines tell you it helps you make the most of using Python. Thus, you don't need to alter your code, the IPython shell runs your python code just like the normal python shell does, o...
What is the JUnit XML format specification that Hudson supports?
...e svn.apache.org/viewvc/ant/core/trunk/src/main/org/apache/tools/…. Basically it's just a string.
– Sulthan
Nov 14 '12 at 16:21
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Configuring Git over SSH to login once
...your key unlocked and loaded, ready to use every time you ssh somewhere.
All ssh-family commands1 will then consult the agent and automatically be able to use your private key.
On OSX (err, macOS), GNOME and KDE systems, ssh-agent is usually launched automatically for you. I will go through the d...
Python regex find all overlapping matches?
...ead captures the text you're interested in, but the actual match is technically the zero-width substring before the lookahead, so the matches are technically non-overlapping:
import re
s = "123456789123456789"
matches = re.finditer(r'(?=(\d{10}))',s)
results = [int(match.group(1)) for match in mat...
Fatal error: use of unimplemented initializer 'init(coder:)' for class
... is required because instantiating a UIViewController from a UIStoryboard calls it.
To see how we initialize a UIViewController from a UIStoryboard, please take a look here
Why is this not a problem with Objective-C?
Because Objective-C automatically inherits all the required UIViewController initia...