大约有 44,000 项符合查询结果(耗时:0.0390秒) [XML]

https://stackoverflow.com/ques... 

jquery get all form elements: input, textarea & select

Is there an easy way (without listing them all separately) in jquery to select all form elements and only form elements. 12...
https://stackoverflow.com/ques... 

How to set a selected option of a dropdown list control using angular JS

I am using Angular JS and I need to set a selected option of a dropdown list control using angular JS. Forgive me if this is ridiculous but I am new with Angular JS ...
https://stackoverflow.com/ques... 

How to find third or nth maximum salary from salary table?

...you want a single) or DENSE_RANK(for all related rows): WITH CTE AS ( SELECT EmpID, EmpName, EmpSalary, RN = ROW_NUMBER() OVER (ORDER BY EmpSalary DESC) FROM dbo.Salary ) SELECT EmpID, EmpName, EmpSalary FROM CTE WHERE RN = @NthRow ...
https://stackoverflow.com/ques... 

How do I check if a number is positive or negative in C#?

... This is the industry standard: int is_negative(float num) { char *p = (char*) malloc(20); sprintf(p, "%f", num); return p[0] == '-'; } share | improve this answer | ...
https://stackoverflow.com/ques... 

How to get input type using jquery?

...to now which are checked, and if it is a drop down I need to know which is selected, and I if it is a text/textarea I need to know the values. ...
https://stackoverflow.com/ques... 

A std::map that keep track of the order of insertion?

... Thats great! Boost even has a member-selector to do the job! – xtofl Jul 8 '09 at 14:19 2 ...
https://stackoverflow.com/ques... 

How do I use ROW_NUMBER()?

... For the first question, why not just use? SELECT COUNT(*) FROM myTable to get the count. And for the second question, the primary key of the row is what should be used to identify a particular row. Don't try and use the row number for that. If you returned Ro...
https://stackoverflow.com/ques... 

How do I execute a stored procedure once for each row returned by query?

... declare @field1 int declare @field2 int declare cur CURSOR LOCAL for select field1, field2 from sometable where someotherfield is null open cur fetch next from cur into @field1, @field2 while @@FETCH_STATUS = 0 BEGIN --execute your sproc on each row exec uspYourSproc @field1, @fiel...
https://stackoverflow.com/ques... 

Why can't a text column have a default value in MySQL?

... I try to recreate the table locally with the obvious default (based on a select of unique values for that column) and end up receiving the oh-so-useful BLOB/TEXT column can't have a default value. Again, not maintaining basic compatability across platforms is unacceptable and is a bug. How to ...
https://stackoverflow.com/ques... 

How to declare a variable in MySQL?

...at has not been initialized, it has a value of NULL and a type of string. SELECT @var_any_var_name You can initialize a variable using SET or SELECT statement: SET @start = 1, @finish = 10; or SELECT @start := 1, @finish := 10; SELECT * FROM places WHERE place BETWEEN @start AND @finish...