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CROSS JOIN vs INNER JOIN in SQL
...My comments point out that the diagrams are hard to interpret even if one knows what they are trying to say and are inappropriate for this topic. By "key" (of Figure 2 or 1) I meant "explanation of what the parts of a diagram mean". By "write it" I mean try for yourself to write very clearly what th...
java.sql.SQLException: - ORA-01000: maximum open cursors exceeded
...e theory behind cursors and how JDBC should be used. If you don't need to know the background, you can skip this and go straight to 'Eliminating Leaks'.
What is a cursor?
A cursor is a resource on the database that holds the state of a query, specifically the position where a reader is in a Result...
Create a Date with a set timezone without using a string representation
... I am amazed about his answer clarity and helpfulness. Did not know that working with Javascript dates was such a nightmare until today :S
– will824
Feb 12 '14 at 17:00
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How to install a private NPM module without my own registry?
...ll path/to/somedir
somedir must contain the package.json inside it.
It knows about git too:
npm install git://github.com/visionmedia/express.git
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How to detect the screen resolution with JavaScript?
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It's not quite correct now. It does not consider possible changing of page zoom.
– sergzach
Mar 25 '13 at 11:37
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Rebuild or regenerate 'ic_launcher.png' from images in Android Studio
...e under different resolutions.
choose a different name for it, click next. Now the icon set for
all those hdpi, xhdpi, mdpi will be in corresponding mipmap folders
finally, most importantly go to your manifest file and change
"android:icon" to the name of your new icon image.
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What are the differences between Pandas and NumPy+SciPy in Python? [closed]
... edited May 20 at 12:16
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5922 silver badges66 bronze badges
answered Jun 18 '12 at 5:11
Wes McKinn...
MIT官方已升级至2.71版本，几乎就是仅增加一个全新主题 - App Inventor 2 ...
...can be independently expanded/collapsed
The main body of MIT App Inventor now loads via the CloudFlare content delivery network. This should result in faster startup of MIT App Inventor.
Note: Sites with restrictive firewalls will need to unblock access to https://.appinv.net (where the “” mea...
How does deriving work in Haskell?
...Generic Classes, but it was rarely used, as it was somewhat weak.
That has now been taken out, and work is ongoing to integrate a new generic deriving mechanism as described in this paper: http://www.dreixel.net/research/pdf/gdmh.pdf
For more on this, see:
GHC wiki: http://hackage.haskell.org/tra...
How to convert a std::string to const char* or char*?
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As of C++17, std::string::data() now returns a CharT* instead of a const CharT*. It might be a good idea to update this answer :)
– Rakete1111
Mar 31 '17 at 12:06
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