大约有 47,000 项符合查询结果(耗时:0.0391秒) [XML]

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...
https://stackoverflow.com/ques... 

MySQL - Get row number on select

Can I run a select statement and get the row number if the items are sorted? 5 Answers ...
https://stackoverflow.com/ques... 

jQuery select2 get value of select tag?

... $("#first").val(); // this will give you value of selected element. i.e. 1,2,3. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How to disable text selection using jQuery?

Does jQuery or jQuery-UI have any functionality to disable text selection for given document elements? 13 Answers ...
https://stackoverflow.com/ques... 

How to declare variable and use it in the same Oracle SQL script?

...; exec :name := 'SALES' PL/SQL procedure successfully completed. SQL> select * from dept 2 where dname = :name 3 / DEPTNO DNAME LOC ---------- -------------- ------------- 30 SALES CHICAGO SQL> A VAR is particularly useful when we want to call a stored...
https://stackoverflow.com/ques... 

Changing selection in a select with the Chosen plugin

I'm trying to change the currently selected option in a select with the Chosen plugin. 4 Answers ...
https://stackoverflow.com/ques... 

How to select/get drop down option in Selenium 2

...converting my selenium 1 code to selenium 2 and can't find any easy way to select a label in a drop down menu or get the selected value of a drop down. Do you know how to do that in Selenium 2? ...
https://stackoverflow.com/ques... 

select * vs select column

If I just need 2/3 columns and I query SELECT * instead of providing those columns in select query, is there any performance degradation regarding more/less I/O or memory? ...
https://stackoverflow.com/ques... 

Turning a Comma Separated string into individual rows

... SomeID INT, OtherID INT, String VARCHAR(MAX) ) INSERT Testdata SELECT 1, 9, '18,20,22' INSERT Testdata SELECT 2, 8, '17,19' INSERT Testdata SELECT 3, 7, '13,19,20' INSERT Testdata SELECT 4, 6, '' INSERT Testdata SELECT 9, 11, '1,2,3,4' The query ;WITH tmp(SomeID, OtherID, DataIt...
https://stackoverflow.com/ques... 

Clear Text Selection with JavaScript

... if (window.getSelection) { if (window.getSelection().empty) { // Chrome window.getSelection().empty(); } else if (window.getSelection().removeAllRanges) { // Firefox window.getSelection().removeAllRanges(); } } else if (doc...