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Update statement with inner join on Oracle

...SING table2 ON (table1.id = table2.id) WHEN MATCHED THEN UPDATE SET table1.startdate = table2.start_date WHERE table1.startdate > table2.start_date; You need the WHERE clause because columns referenced in the ON clause cannot be updated. ...
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How to debug a Flask app

...other terminal debugger by calling set_trace in the view where you want to start debugging. Be sure not to use too-broad except blocks. Surrounding all your code with a catch-all try... except... will silence the error you want to debug. It's unnecessary in general, since Flask will already handl...
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NPM cannot install dependencies - Attempt to unlock something which hasn't been locked

... I was able to work around this by specifying sudo -u someUser -i, which starts a new login shell. I looked into this some more and the caching code in npm uses the npm.cache variable, which I'm guessing defaults to $HOME/.npm/. sudo can also have different behavior with what the HOME variable get...
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How to format a string as a telephone number in C#

...se note, this answer works with numeric data types (int, long). If you are starting with a string, you'll need to convert it to a number first. Also, please take into account that you'll need to validate that the initial string is at least 10 characters in length. From a good page full of examples:...
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Why should I prefer single 'await Task.WhenAll' over multiple awaits?

... @OskarLindberg the OP is starting all tasks before he is awaiting the first one. So they run concurrently. Thanks for the link. – usr Nov 21 '13 at 12:56 ...
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YAML mime type?

... This isn't quite true. Mime types that start with text/ are to be processed as ISO-8859-1 unless another mime type is explicitly declared (e.g. text/html; charset=utf-8). Mime types that start with application/ are processed as UTF-8 unless another mime type is ex...
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Inspecting standard container (std::map) contents with gdb

...5. } And: .... Breakpoint 1 at 0x400e08: file foo.C, line 15. (gdb) run Starting program: /tmp/z/qD Breakpoint 1, main () at qD.C:15 (gdb) call testPrint( m, 2) m[i] = 4 (*m.find(i)).first = 2 (gdb) share | ...
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How to remove a package in sublime text 2

...od for "Sublimerge" had run out and I would get a popup every time I would start Sublime Text 2 saying: "The package specified, Sublimerge, is not available" I would have to close the event window out before being able to do anything in ST2. But in my case, even after successfully removing the pa...
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How can I check if a file exists in Perl?

...guess). -B File is a “binary” file (opposite of -T). -M Script start time minus file modification time, in days. -A Same for access time. -C Same for inode change time (Unix, may differ for other platforms) ...
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How do I print bold text in Python?

... This depends if you're using linux/unix: >>> start = "\033[1m" >>> end = "\033[0;0m" >>> print "The" + start + "text" + end + " is bold." The text is bold. The word text should be bold. ...