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What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]

...x comma joins with the other join types when there is a join condition, an error of the form Unknown column 'col_name' in 'on clause' may occur" – Captain Payalytic Oct 17 '18 at 11:27 ...
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What are .a and .so files?

...ories... /usr/lib and /lib have most of them, and there is also the LIBRARY_PATH environment variable. share | improve this answer | follow | ...
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Determine the process pid listening on a certain port

As the title says, I'm running multiple game servers, and every of them has the same name but different PID and the port number. I would like to match the PID of the server which is listening on certain port, and then I would like to kill this process. I need that in order to complete my bas...
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The difference between sys.stdout.write and print?

...nt (and more generally between a function and a statement). In case of an error when evaluating arguments: print "something", 1/0, "other" #prints only something because 1/0 raise an Exception print("something", 1/0, "other") #doesn't print anything. The function is not called ...
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How to change the map center in Leaflet.js

...r location. How do I change the center of the map to a new position after calling the initialize function? 4 Answers ...
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How to view the SQL queries issued by JPA?

When my code issues a call like this: 16 Answers 16 ...
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Expand a div to fill the remaining width

... The solution to this is actually very easy, but not at all obvious. You have to trigger something called a "block formatting context" (BFC), which interacts with floats in a specific way. Just take that second div, remove the float, and give it overfl...
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How do I clear all options in a dropdown box?

... You can use the following to clear all the elements. var select = document.getElementById("DropList"); var length = select.options.length; for (i = length-1; i >= 0; i--) { select.options[i] = null; } ...
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Bash Script: count unique lines in file

I have a large file (millions of lines) containing IP addresses and ports from a several hour network capture, one ip/port per line. Lines are of this format: ...
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What's the bad magic number error?

What's the "Bad magic number" ImportError in python, and how do I fix it? 15 Answers 1...