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Create an index on a huge MySQL production table without table locking
...ating MySQL's Schema without downtime
Thusfar, there's only one method I know of to update a MySql schema and not suffer an availability outage. Circular masters:
Master A has your MySQL database running on it
Bring Master B into service and have it replicate writes from Master A ( B is a slave ...
How can I read and parse CSV files in C++?
...:cout << "4th Element(" << (*loop)[3] << ")\n";
}
}
Now that we are in 2020 lets add a CSVRange object:
class CSVRange
{
std::istream& stream;
public:
CSVRange(std::istream& str)
: stream(str)
{}
CSVIterator begin() const {...
Using multiple let-as within a if-statement in Swift
...and latitude or longitude as Double")
}
Update: This version of the code now works properly.
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How to remove all debug logging calls before building the release version of an Android app?
...See also the examples in the ProGuard manual.
Update (4.5 years later): Nowadays I used Timber for Android logging.
Not only is it a bit nicer than the default Log implementation — the log tag is set automatically, and it's easy to log formatted strings and exceptions — but you can also spec...
How to use bootstrap-theme.css with bootstrap 3?
...link from the <head> of the example and then you can compare it.
I know this is an old question but posted it just in case anyone is looking for an example of how it looks like I was.
Update
bootstrap.css = main css framework (grids, basic styles, etc)
bootstrap-theme.css = extended styli...
Why are we not to throw these exceptions?
...llReferenceException and IndexOutOfRangeException are of a different kind. Now these are very specific exceptions, so throwing them could be fine. However, you still won’t want to throw these, as they usually mean that there are some actual mistakes in your logic. For example the null reference ex...
How are the points in CSS specificity calculated
...zemonger pointed out earlier in the year, webkit browsers (chrome, safari) now appear to use a higher base than 256. Perhaps 216, like Opera? IE and Firefox still use 256.
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fetch from origin with deleted remote branches?
...realized we were advertising the "after" explicitly.
So the documentation now states:
Before fetching, remove any remote-tracking references that no longer exist on the remote
That is because:
When we have a remote-tracking branch named "frotz/nitfol" from a previous fetch, and the upstream now ...
Why does the order in which libraries are linked sometimes cause errors in GCC?
...
(See the history on this answer to get the more elaborate text, but I now think it's easier for the reader to see real command lines).
Common files shared by all below commands
$ cat a.cpp
extern int a;
int main() {
return a;
}
$ cat b.cpp
extern int b;
int a = b;
$ cat d.cpp
int b;
L...
How to replace a character with a newline in Emacs?
...
It's really a good idea for the characters which I don't know the key bind.
– Lei
Mar 5 '09 at 18:16
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