大约有 32,000 项符合查询结果(耗时:0.0431秒) [XML]
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”
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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...
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 ...
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...
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...
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.
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