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How do I check for a network connection?
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Does this take care of "limited availability"?
– tofutim
Sep 13 '11 at 0:51
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What is the difference between re.search and re.match?
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re.match is anchored at the beginning of the string. That has nothing to do with newlines, so it is not the same as using ^ in the pattern.
As the re.match documentation says:
If zero or more characters at the
beginning of string match the regular expression pattern, return a
correspondin...
How do I use ROW_NUMBER()?
...imary key of the row is what should be used to identify a particular row. Don't try and use the row number for that.
If you returned Row_Number() in your main query,
SELECT ROW_NUMBER() OVER (Order by Id) AS RowNumber, Field1, Field2, Field3
FROM User
Then when you want to go 5 rows back then...
MySQL Error 1093 - Can't specify target table for update in FROM clause
... modify the same table which you use in the SELECT part.
This behaviour is documented at:
http://dev.mysql.com/doc/refman/5.6/en/update.html
Maybe you can just join the table to itself
If the logic is simple enough to re-shape the query, lose the subquery and join the table to itself, employing ap...
How is the default submit button on an HTML form determined?
...k() then the submit that you had a reference to is considered active; this doesn't really fall under the remit of your question since here the submit button is unambiguous but I thought I'd include it for people who read the first part and wonder how to make a submit button successful via JS form su...
SVN: Folder already under version control but not comitting?
...er version control, so I try to add it, and then it tells me it is. When I do an svn ci , it doesn't get comitted, and doesn't show up when I try to browse to repository online.
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LINQPad [extension] methods [closed]
Does anyone have a complete list of LINQPad extension methods and methods, such as
4 Answers
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What is q=0.5 in Accept* HTTP headers?
What do these 'q=%f' mean?
3 Answers
3
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How to get hex color value rather than RGB value?
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-1. As mentioned by orip, you could use toString(16). Downvoted for other inefficiencies. If you're going to declare hexDigits on every function call, at least do it in rgb2hex's function body (not hex's body), so the array is not redefined 3 times per 1 call to rgb2hex. Also le...
Why can Java Collections not directly store Primitives types?
...d one that some consider a mistake. Containers want Objects and primitives don't derive from Object.
This is one place that .NET designers learned from the JVM and implemented value types and generics such that boxing is eliminated in many cases. In CLR, generic containers can store value types as ...