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Error 1022 - Can't write; duplicate key in table
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Exactly as you said. Many constraints were auto generated with the same idcategory iduser names in the rest of the CREATE query - thanks for your help!
– Git-able
Aug 5 '13 at 14:38
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Python try…except comma vs 'as' in except
What is the difference between ',' and 'as' in except statements, eg:
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Why do we need boxing and unboxing in C#?
Why do we need boxing and unboxing in C#?
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What's the difference between `1L` and `1`?
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So, @James and @Brian explained what 3L means. But why would you use it?
Most of the time it makes no difference - but sometimes you can use it to get your code to run faster and consume less memory. A double ("numeric") vector uses 8 bytes per e...
How to get Linux console window width in Python
...the number of characters that fits in one line without wrapping, not the pixel width of the window.
14 Answers
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Functional programming - is immutability expensive? [closed]
The question is in two parts. The first is conceptual. The next looks at the same question more concretely in Scala.
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Sort a list from another list IDs
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docs = docs.OrderBy(d => docsIds.IndexOf(d.Id)).ToList();
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Android emulator failed to allocate memory 8
When I try to run my WXGA800 emulator from Eclipse it's giving an error like this
12 Answers
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Can not connect to local PostgreSQL
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This really looks like a file permissions error. Unix domain sockets are files and have user permissions just like any other. It looks as though the OSX user attempting to access the database does not have file permissions to access the socket file. To confirm this I've done...
How do I force detach Screen from another SSH session?
...detaches the already-running screen session, and screen -r reattaches the existing session. By running screen -d -r, you force screen to detach it and then resume the session.
If you use the capital -D -RR, I quote the man page because it's too good to pass up.
Attach here and now. Whatever t...