大约有 48,000 项符合查询结果（耗时：0.0548秒） [XML]
UPDATE multiple tables in MySQL using LEFT JOIN
...
UPDATE t1
LEFT JOIN
t2
ON t2.id = t1.id
SET t1.col1 = newvalue
WHERE t2.id IS NULL
Note that for a SELECT it would be more efficient to use NOT IN / NOT EXISTS syntax:
SELECT t1.*
FROM t1
WHERE t1.id NOT IN
(
S...
Error in : object of type 'closure' is not subsettable
...
120
In general this error message means that you have tried to use indexing on a function. You can...
Visual Studio, Find and replace, regex
... <whatever.h> using find and replace functionality in Visual Studio 2005. I used the regex \#include \"[a-z\.h]+\" to find the include statement. But I am wondering how frame the replace regex.
...
Calling static generic methods
...pe inference based on the target of the assignment, as per JLS section 15.12.2.8. To be explicit, you'd call something like:
Foo.<String>createFoo();
share
|
improve this answer
|
...
What would cause an algorithm to have O(log log n) complexity?
...
2 Answers
2
Active
...
“render :nothing => true” returns empty plaintext file?
I'm on Rails 2.3.3, and I need to make a link that sends a post request.
2 Answers
2
...
Why use symbols as hash keys in Ruby?
...
229
TL;DR:
Using symbols not only saves time when doing comparisons, but also saves memory, becau...
LINQ Using Max() to select a single row
...
233
I don't see why you are grouping here.
Try this:
var maxValue = table.Max(x => x.Status)
...
Get current controller in view
...
answered Jul 28 '11 at 2:07
Nicholas SizerNicholas Sizer
3,18033 gold badges2525 silver badges2929 bronze badges
...