大约有 40,000 项符合查询结果（耗时：0.0487秒） [XML]
Find all records which have a count of an association greater than zero
..._id
=> [43, 34, 45, 55, 17, 19, 1, 3, 4, 18, 44, 5, 13, 22, 16, 6, 53]
[11] pry(main)> _.size
=> 17
[12] pry(main)> Article.joins(:comments).size
=> 45
[13] pry(main)> Article.joins(:comments).distinct.size
=> 17
[14] pry(main)> Article.joins(:comments).distinct.to_sql
=> ...
How do you implement a “Did you mean”? [duplicate]
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edited Oct 27 '11 at 5:04
answered Nov 3 '08 at 10:33
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What is the difference between a schema and a table and a database?
...raeme Perrow
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Utilizing the GPU with c# [closed]
...(so supports AMD too). Not much documentation / examples. Last update in 2011.
C$ - last development was over 10 years ago...
Microsoft Accelerator - similarly doesn't look like it is being actively developed any longer.
some others (C++ AMP, OpenTK -- dead/Cloo) - many of these are just bindings - ...
How to select only 1 row from oracle sql?
... Jon Heller
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answered Apr 10 '17 at 21:25
mancini0mancini0
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Do Google refresh tokens expire?
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Jonathan Leffler
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answered Jan 21 '12 at 15:21
ShadowShado...
How to make ruler always be shown in Sublime text 2?
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Edit the "rulers" value in the default settings to contain the column number you want the rule...
Android: Remove all the previous activities from the back stack
...CTIVITY_CLEAR_TASK
startActivity(i)
However, it requires API level >= 11.
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Dynamic cell width of UICollectionView depending on label width
... list.
– Arshad Shaik
Jul 12 '19 at 11:19
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Iterate keys in a C++ map
... keys in vector
– aJ.
Sep 18 '09 at 11:01
5
You may want to do this instead: const Key&...