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Get table names using SELECT statement in MySQL
In MySQL, I know I can list the tables in a database with:
12 Answers
12
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Why does one hot encoding improve machine learning performance?
...this feature in a linear classifier, which will make some kind of decision based on the constraint w×x + b > 0, or equivalently w×x < b.
The problem now is that the weight w cannot encode a three-way choice. The three possible values of w×x are 0, w and 2×w. Either these three all lead to...
Why does Convert.ToString(null) return a different value if you cast null?
...don't see it as big deal.
System.Convert has methods for converting every base type to itself. This is strange - since no conversion is needed or possible, so the methods end up just returning the parameter. Convert.ToString(string) behaves the same. I presume these are here for code generation sce...
Why are const parameters not allowed in C#?
... “The callee is free to cast away the const …” uhhhhh… (°_°) This is a pretty shallow argument you're making here. The callee is also free to just start writing random memory locations with 0xDEADBEEF. But both would be very bad programming, and caught early and poignantly by an...
What is the best way to implement constants in Java? [closed]
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@ŁukaszL. The question itself is really opinion based (whenever "best" arises, it typically is a matter of opinion), so the answer is a valid answer to this question. I've given an answer as to what (yes, I believe to be, so yes it is an opinion, because again "best" chan...
A non-blocking read on a subprocess.PIPE in Python
...or asynchronous IO -- asyncio module.
The approach is similar to twisted-based answer by @Bryan Ward -- define a protocol and its methods are called as soon as data is ready:
#!/usr/bin/env python3
import asyncio
import os
class SubprocessProtocol(asyncio.SubprocessProtocol):
def pipe_data_r...
What are free monads?
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foldFree :: Functor f => (f r -> r) -> Free f r -> r
foldFree _ (Pure a) = a
foldFree f (Roll x) = f (fmap (foldFree f) x)
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Does MySQL foreign_key_checks affect the entire database?
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It is session-based, when set the way you did in your question.
https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html
According to this, FOREIGN_KEY_CHECKS is "Both" for scope. This means it can be set for session:
SET FO...
Position Absolute + Scrolling
...s position to relative makes the absolutely position elements inside of it base their position and height on it rather than on the .container div, which has a fixed height. Without the inner, relatively positioned div, the .full-height div will always calculate its dimensions and position based on ....
Why is JsonRequestBehavior needed?
...t.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
base.OnResultExecuting(filterContext);
}
}
and use it on your action
[AllowJsonGet]
public JsonResult MyAjaxAction()
{
return Json("this is my test");
}
...