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What is the difference between varchar and varchar2 in Oracle?

...n who wrote the incorrect comment I was responding to. The fact that where x is NULL returns different results from where x = '' does not mean that NULL and '' are in any way different. The different behavior is due to the = operator. – Dan Lenski Apr 8 '17 at ...
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Iterating C++ vector from the end to the beginning

...o check (my_vector.begin() != my_vector.end()). – a1ex07 Aug 31 '10 at 18:07 1 Why are you using ...
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Column order manipulation using col-lg-push and col-lg-pull in Twitter Bootstrap 3

...for the official release (v3 and v4) I couldn't even find the col-lg-push-x or pull classes in the original files for RC1 i downloaded, so check your bootstrap.css file. hopefully this is something they will sort out in RC2. anyways, the col-push-* and pull classes did exist and this will suit you...
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JSON serialization of Google App Engine models

...o, is there a simple way to serialize App Engine models (google.appengine.ext.db.Model) into JSON or do I need to write my own serializer? ...
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How to replace multiple substrings of a string?

... Here is a short example that should do the trick with regular expressions: import re rep = {"condition1": "", "condition2": "text"} # define desired replacements here # use these three lines to do the replacement rep = dict((re.escape(k), ...
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How do I kill background processes / jobs when my shell script exits?

I am looking for a way to clean up the mess when my top-level script exits. 13 Answers ...
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Is there a better Windows Console Window? [closed]

...console window is wretched to use compared to terminal applications on linux and OS X such as "rxvt", "xterm", or "Terminal". Major complaints: ...
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How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?

...programmatically (i.e., not using vi ) convert DOS/Windows newlines to Unix? 23 Answers ...
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Disable same origin policy in Chrome

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Reading a UTF8 CSV file with Python

...pen in particular for better general solutions for reading UTF-8 encoded text files. However, for the csv module in particular, you need to pass in utf-8 data, and that's what you're already getting, so your code can be much simpler: import csv def unicode_csv_reader(utf8_data, dialect=csv.excel, ...