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MySQL, Check if a column exists in a table with SQL
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How do I determine file encoding in OS X?
...tect the encoding of a file. Read this answer, it explains why.
There's a command line tool, enca, that attempts to guess the encoding. You might want to check it out.
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How to query as GROUP BY in django?
...esignation, it will not work without resetting the sort. See stackoverflow.com/a/1341667/202137
– Gidgidonihah
May 5 '14 at 19:41
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What is the difference between JSF, Servlet and JSP?
...available in the page, request, session and application scopes), mostly in combination with taglibs.
When a JSP is requested for the first time or when the web app starts up, the servlet container will compile it into a class extending HttpServlet and use it during the web app's lifetime. You can fi...
Prevent scroll-bar from adding-up to the Width of page on Chrome
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What does the “__block” keyword mean?
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It tells the compiler that any variable marked by it must be treated in a special way when it is used inside a block. Normally, variables and their contents that are also used in blocks are copied, thus any modification done to these vari...
How to overcome “datetime.datetime not JSON serializable”?
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Updated for 2018
The original answer accommodated the way MongoDB "date" fields were represented as:
{"$date": 1506816000000}
If you want a generic Python solution for serializing datetime to json, check out @jjmontes' answer for a quick solution which requires ...
Java rounding up to an int using Math.ceil
...anything. There are three possible solutions to achieve what you want. I recommend using either option 1 or option 2. Please do NOT use option 0.
##Option 0
Convert a and b to a double, and you can use the division and Math.ceil as you wanted it to work. However I strongly discourage the use of this...
How do I make a request using HTTP basic authentication with PHP curl?
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Reducing MongoDB database file size
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UPDATE: with the compact command and WiredTiger it looks like the extra disk space will actually be released to the OS.
UPDATE: as of v1.9+ there is a compact command.
This command will perform a compaction "in-line". It will still need s...