大约有 43,100 项符合查询结果（耗时：0.0371秒） [XML]
MySQL ON vs USING?
...
415
It is mostly syntactic sugar, but a couple differences are noteworthy:
ON is the more general ...
Get week of year in JavaScript like in PHP
...
19 Answers
19
Active
...
Capitalize the first letter of both words in a two word string
...
12 Answers
12
Active
...
What are type lambdas in Scala and what are their benefits?
...
148
Type lambdas are vital quite a bit of the time when you are working with higher-kinded types.
...
What does the star operator mean, in a function call?
...arguments, so you can do this:
def sum(a, b):
return a + b
values = (1, 2)
s = sum(*values)
This will unpack the tuple so that it actually executes as:
s = sum(1, 2)
The double star ** does the same, only using a dictionary and thus named arguments:
values = { 'a': 1, 'b': 2 }
s = sum(*...
conditional unique constraint
... constraint like this. The difference is, you'll return false if Status = 1 and Count > 0.
http://msdn.microsoft.com/en-us/library/ms188258.aspx
CREATE TABLE CheckConstraint
(
Id TINYINT,
Name VARCHAR(50),
RecordStatus TINYINT
)
GO
CREATE FUNCTION CheckActiveCount(
@Id INT
) RETURNS I...
How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
...
15 Answers
15
Active
...
Select values from XML field in SQL Server 2008
...
159
Given that the XML field is named 'xmlField'...
SELECT
[xmlField].value('(/person//firstName...