大约有 47,000 项符合查询结果(耗时:0.0184秒) [XML]

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... 

jQuery Set Select Index

I have an select box: 24 Answers 24 ...
https://stackoverflow.com/ques... 

PostgreSQL Crosstab Query

... - not fit for missing attributes crosstab(text) with 1 input parameter: SELECT * FROM crosstab( 'SELECT section, status, ct FROM tbl ORDER BY 1,2' -- needs to be "ORDER BY 1,2" here ) AS ct ("Section" text, "Active" int, "Inactive" int); Returns: Section | Active | Inacti...
https://stackoverflow.com/ques... 

Using LIMIT within GROUP BY to get N results per group?

...to get all years into a single column, grouped by id and ordered by rate: SELECT id, GROUP_CONCAT(year ORDER BY rate DESC) grouped_year FROM yourtable GROUP BY id Result: ----------------------------------------------------------- | ID | GROUPED_YEAR |...
https://stackoverflow.com/ques... 

How to select option in drop down protractorjs e2e tests

I am trying to select an option from a drop down for the angular e2e tests using protractor. 31 Answers ...
https://stackoverflow.com/ques... 

Use variable with TOP in select statement in SQL Server without making it dynamic [duplicate]

...es, in SQL Server 2005 it's possible to use a variable in the top clause. select top (@top) * from tablename share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Javascript/jQuery: Set Values (Selection) in a multiple Select

I have a multiple select: 8 Answers 8 ...
https://stackoverflow.com/ques... 

Is there any difference between GROUP BY and DISTINCT

...CT and distinct by UNION cause an oracle error, but GROUP BY worked; I was selecting only 1 column from a view and not using any aggregation; I'm still baffled why it required it, but it does confirm there is some difference in the execution. As others point out, it also lets you GROUP BY columns no...
https://stackoverflow.com/ques... 

How do I do top 1 in Oracle?

... If you want just a first selected row, you can: select fname from MyTbl where rownum = 1 You can also use analytic functions to order and take the top x: select max(fname) over (rank() order by some_factor) from MyTbl ...
https://stackoverflow.com/ques... 

How can I select rows with most recent timestamp for each key value?

...r data. Each row has a sensor id, a timestamp, and other fields. I want to select a single row with latest timestamp for each sensor, including some of the other fields. ...