大约有 41,000 项符合查询结果（耗时：0.0218秒） [XML]
How to reshape data from long to wide format
...age also does this simply, with gather()/spread() being the terms for melt/cast.
Edit: Now, in 2019, tidyr v 1.0 has launched and set spread and gather on a deprecation path, preferring instead pivot_wider and pivot_longer, which you can find described in this answer. Read on if you want a brief gli...
How do I convert a decimal to an int in C#?
...an also use Decimal.ToInt32. Again, see MSDN. Finally, you can do a direct cast as in
decimal value = 3.14m;
int n = (int) value;
which uses the explicit cast operator. See MSDN.
share
|
improve ...
SQL order string as number
... to a number if you only store numbers anyway.
If you can't do that then cast your column value to an integer explicitly with
select col from yourtable
order by cast(col as unsigned)
or implicitly for instance with a mathematical operation which forces a conversion to number
select col from y...
How to get C# Enum description from value? [duplicate]
...The default underlying data type for an enum in C# is an int, you can just cast it.
share
|
improve this answer
|
follow
|
...
How to check that an object is empty in PHP?
...
You can cast to an array and then check if it is empty or not
$arr = (array)$obj;
if (!$arr) {
// do stuff
}
share
|
improve ...
How to cast Object to its actual type?
...
Nevermind, found as for typecasting and type(of: ClassName) function to check instance type.
– Nagendra Rao
Apr 22 '17 at 20:34
...
Convert Long into Integer
...
Why would you cast twice when you can just call intValue instead ? Plus it is going to unbox to long, cast to int, and rebox to Integer, which does not seem very useful. I don't see the point on top of my head, do you have a good reason fo...
FIND_IN_SET() vs IN()
...ID IN (attachedCompanyIDs)
attachedCompanyIDs is a scalar value which is cast into INT (type of companyID).
The cast only returns numbers up to the first non-digit (a comma in your case).
Thus,
companyID IN ('1,2,3') ≡ companyID IN (CAST('1,2,3' AS INT)) ≡ companyID IN (1)
In PostgreSQL, ...
How to calculate percentage with a SQL statement
...u put it after the division operation you would have to make sure that you cast to a data type that can handle the decimal places otherwise you will end up with 100 or 0 and never an actual percentage
– Matt
Sep 20 '16 at 23:42
...
How do I write a short literal in C++?
...
((short)2)
Yeah, it's not strictly a short literal, more of a casted-int, but the behaviour is the same and I think there isn't a direct way of doing it.
That's what I've been doing because I couldn't find anything about it. I would guess that the compiler would be smart enough to c...