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How to select only the first rows for each unique value of a column
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How to add /usr/local/bin in $PATH on Mac
...mple from other OSs includes $PATH because none of them seem to be able to commit to being the first one in the chain...
– Synchro
Jul 7 '14 at 12:54
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Clustered vs Non-Clustered
...cate key value (in your case, any rows with the same PersonId) so that the combined value (key + background value) is unique.
The only thing I would suggest is not using a surrogate key (your CourtOrderId) column as the primary key, but instead use a compound primary key of the PersonId and some o...
When monkey patching an instance method, can you call the overridden method from the new implementat
... ' World'
end
end
foo = Foo.new # this is not actually in your code, it comes from somewhere else
wrapped_foo = WrappedFoo.new(foo) # this is under your control
wrapped_foo.bar # => 'Hello World'
Basically, at the boundary of the system, where the Foo object comes into your code, you wrap ...
How can I temporarily disable a foreign key constraint in MySQL?
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serverfault.com/questions/291100/… , Also note that you cannot disable keys for Innodb
– Pacerier
Feb 24 '15 at 4:19
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Eclipse and Windows newlines
...en my desktop crashed. A week later I copy it back to Linux, code happily, commit to CVS. And alas, windows newlines have polluted many files, so CVS diff dumps the entire file, even when I changed a line or two!
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convert pfx format to p12
...". Microsoft's "PFX" has received heavy criticism of being one of the most complex cryptographic protocols. PKCS #12 is the successor to Microsoft's "PFX". PKCS #12 is one of the family of standards called Public-Key Cryptography Standards (PKCS) published by RSA Laboratories.
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Catching all javascript unhandled exceptions
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This is awesome and thanks! been trying to debug a complex photo-zooming script that works fine 100% of the time, except on mobile safai where it randomly fails, and where there is no "console" or "developer" window to see what happened. Sure I have my own "debug" window I ca...
Rails nested form with has_many :through, how to edit attributes of join model?
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Can I call memcpy() and memmove() with “number of bytes” set to zero?
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function that locates a character finds no occurrence, a function that compares two
character sequences returns zero, and a function that copies characters copies zero
characters.
So the answer is no; the check is not necessary (or yes; you can pass zero).
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