大约有 46,000 项符合查询结果(耗时:0.0310秒) [XML]

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How to remove the default arrow icon from a dropdown list (select element)?

I want to remove the dropdown arrow from a HTML <select> element. For example: 12 Answers ...
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What is the simplest SQL Query to find the second largest value?

... SELECT MAX( col ) FROM table WHERE col < ( SELECT MAX( col ) FROM table ) share | improve this answ...
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How to get the first and last date of the current year?

... SELECT DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) AS StartOfYear, DATEADD(yy, DATEDIFF(yy, 0, GETDATE()) + 1, -1) AS EndOfYear The above query gives a datetime value for midnight at the beginning of December 31. This ...
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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 ...
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Linq Syntax - Selecting multiple columns

... .Where(x => x.EMAIL == givenInfo || x.USER_NAME == givenInfo) .Select(x => new { x.EMAIL, x.ID }); AFAIK, the declarative LINQ syntax is converted to a method call chain similar to this when it is compiled. UPDATE If you want the entire object, then you just have to omit the call ...
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Include headers when using SELECT INTO OUTFILE?

... You'd have to hard code those headers yourself. Something like: SELECT 'ColName1', 'ColName2', 'ColName3' UNION ALL SELECT ColName1, ColName2, ColName3 FROM YourTable INTO OUTFILE '/path/outfile' share ...
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HTML input file selection event not firing upon selecting the same file

Is there any chance to detect every file selection the user made for an HTML input of type file element? 7 Answers ...
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How do you create a random string that's suitable for a session ID in PostgreSQL?

...sion verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this? ...
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Rails: select unique values from a column

... Model.select(:rating) Result of this is a collection of Model objects. Not plain ratings. And from uniq's point of view, they are completely different. You can use this: Model.select(:rating).map(&:rating).uniq or this (mo...
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Vim search and replace selected text

Let's say we have a text, and I enter visual mode and select some text. How do I quickly do a search for the highlighted text and replace it with something else? ...