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Rank function in MySQL
...rRank := @curRank + 1 AS rank
FROM person p, (SELECT @curRank := 0) r
ORDER BY age;
The (SELECT @curRank := 0) part allows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE person (id int, first_name varchar(20), age int, gender char(1));
INSERT...
Sorting a set of values [closed]
...ng else iterable), sorted(s) returns a list of the elements of s in sorted order:
>>> s = set(['0.000000000', '0.009518000', '10.277200999', '0.030810999', '0.018384000', '4.918560000'])
>>> sorted(s)
['0.000000000', '0.009518000', '0.018384000', '0.030810999', '10.277200999', '4....
What happens to a detached thread when main() exits?
... is what the _at_thread_exit family of functions was designed for.
So, in order to avoid undefined behaviour in the absence of any implementation guarantees above what the standard requires, you need to (manually) join a detached thread with an _at_thread_exit function doing the signalling or make ...
Conceptually, how does replay work in a game?
...sequence as the recorded actions are supposed to happen have a replay.
In order to get random events to re-occur exactly the same, use seeded pseudo-random numbers and save the seed in the replay file.
So long as you use the same algorithm to generate the random numbers from the seed, you can recr...
git - Find commit where file was added
...r i had to provide the relative path to the file from the git repo root in order to get the desired results
– ipatch
Dec 11 '19 at 20:08
...
Access an arbitrary element in a dictionary in Python
...te that "first" may not be an appropriate term here because dict is not an ordered type in Python < 3.6. Python 3.6+ dicts are ordered.
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What is the best workaround for the WCF client `using` block issue?
...ink this is better than my IDisposable wrapper. Typical code:
Service<IOrderService>.Use(orderService=>
{
orderService.PlaceOrder(request);
});
(edit per comments)
Since Use returns void, the easiest way to handle return values is via a captured variable:
int newOrderId = 0; // ne...
What's the yield keyword in JavaScript?
...essary when it needs to wait for variables and things to load. But now, in order to run this, you need to call a normal (non-coroutine function). A simple co-routine framework can fix this problem so that all you have to do is run this:
start(main())
And start is defined (from Nick Sotiro' answer...
What's the equivalent for eclipse's ALT+UP/DOWN (move line) in Visual Studio?
...e the entire line, but can also be used to move entire methods, change the order of parameters, etc.
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Unusual shape of a textarea?
...ht of the main div:
As you can see, you have to play a little with the borders if you want the same result as you requested in your post. The main div has the blue border on every side. Next, red blocks has to be sticked to hide top borders of the main div, and you need to apply border to them on...