大约有 32,000 项符合查询结果(耗时:0.0431秒) [XML]

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MySQL INNER JOIN select only one row from second table

...ltiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL statements before so I want to know what i'm doing wrong. Appreciate the help ...
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Better naming in Tuple classes than “Item1”, “Item2”

... It should be noted that C# 7's ValueTuple, while usually great, is a mutable value type (struct), while Tuple is an immutable reference type (class). As far as I know, there's no way to get a reference type Tuple with friendly item names. – dx_over_dt ...
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What does “WARN Could not determine content-length of response body.” mean and how to I get rid of i

...e to a future release of Ruby. I'm using rails 3.2.0 on ruby 1.9.3-p0 installed through RVM as a single user. So the location in my case is: ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/webrick/httpresponse.rb The location of the file to be altered differs depending on the type of installation, R...
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Differences between MySQL and SQL Server [closed]

I'm an ASP.NET developer who has used Microsoft SQL Server for all my database needs (both at work and for personal projects). ...
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Root user/sudo equivalent in Cygwin?

... The problem with this is that it creates a whole new terminal window (usually conhost). The output isn't inlined into the current terminal. – CMCDragonkai Apr 24 '16 at 7:19 1 ...
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Javascript fuzzy search that makes sense

...oth strings. Jaccard distance: 1 minues the quotient of shared N-grams and all observed N-grams. Maybe you could use a weighted combination (or minimum) of these metrics, with Levenshtein -- common substring, common N-gram or Jaccard will all strongly prefer similar strings -- or perhaps try just ...
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Getting back old copy paste behaviour in tmux, with mouse

...ss you re-map it). : starts command mode and set -g sets the parameter globally. When mouse mode is turned off, the standard copy/paste functions provided by your operating system work as expected. Something else you might want to do is 'maximise' the current pane, so you can copy multiple lines e...
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How do you create a transparent demo screen for an Android app?

...a semi-transparent demo screen that is launched only when a user first installs my application. Here's an example from the Pulse News app: ...
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Detecting input change in jQuery?

...ill fire when the user is typing into a text field, pasting, undoing, basically anytime the value changed from one value to another. In jQuery do that like this $('#someInput').bind('input', function() { $(this).val() // get the current value of the input field. }); starting with jQuery 1.7...
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Android map v2 zoom to show all the markers

...markers in the GoogleMap . I want to zoom in as much as possible and keep all markers in view? In the earlier version this can be achieved from zoomToSpan() but in v2 I have no idea how about doing that. Further, I know the radius of the circle that needs to be visible. ...