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What does collation mean?
...rt strings: letters order; whether case matters, whether diacritics matter etc.
For instance, if you want all letters to be different (say, if you store filenames in UNIX), you use UTF8_BIN collation:
SELECT 'A' COLLATE UTF8_BIN = 'a' COLLATE UTF8_BIN
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If you want to ignore case and diacr...
When should a class be Comparable and/or Comparator?
...aring two instances of a type - e.g. you could compare people by age, name etc.
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What is the Java equivalent for LINQ? [closed]
...mething in the plan? integrated into the language? IS ther a JCP number? etc etc.
– Cheeso
Aug 1 '09 at 18:58
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Subtract days from a date in JavaScript
...mber, use one of the Date toString methods like toISOString, toDateString, etc.
– Bad Request
Feb 2 '15 at 19:26
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Unit tests vs Functional tests
...ns, generally, that you are testing system functionality -- when I run foo file.txt at the command line, the lines in file.txt become reversed, perhaps. In contrast, a single unit test generally covers a single case of a single method -- length("hello") should return 5, and length("hi") should retu...
What's the best method in ASP.NET to obtain the current domain?
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This bug has forced me to insert my domain host as a string in the config files.
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iOS - forward all touches through a view
...In essence, the subclass can have an entirely empty '@interface' in the .h file, and the function above be the entire contents of the '@implementation'.
– fresidue
Mar 7 '14 at 16:01
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Include jQuery in the JavaScript Console
...ime to figure it out why. Just copied code.jquery.com/jquery-latest.min.js file content and pasted into console. Works perfect.
– Ruslanas Balčiūnas
Nov 22 '12 at 11:32
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Extracting just Month and Year separately from Pandas Datetime column
...column'].dt.to_period('M')
You could also use D for Day, 2M for 2 Months etc. for different sampling intervals, and in case one has time series data with time stamp, we can go for granular sampling intervals such as 45Min for 45 min, 15Min for 15 min sampling etc.
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What is the difference between an int and a long in C++?
...have at least 8 bits (CHAR_BIT).
C++ inherits those rules for the limits.h file, so in C++ we have the same fundamental requirements for those values.
You should however not derive from that that int is at least 2 byte. Theoretically, char, int and long could all be 1 byte, in which case CHAR_BIT m...