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Why does Oracle 9i treat an empty string as NULL?
...efore there was a SQL standard, Oracle made the design decision that empty strings in VARCHAR/VARCHAR2 columns were NULL and that there was only one sense of NULL (there are relational theorists that would differentiate between data that has never been prompted for, data where the answer exists but ...
Open file in a relative location in Python
...the parent folder of the current folder did not worked..the .. is added as string..
– M. Paul
Jan 31 '19 at 8:00
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How do you clear a stringstream variable?
...he error state back to goodbit (no error).
For clearing the contents of a stringstream, using:
m.str("");
is correct, although using:
m.str(std::string());
is technically more efficient, because you avoid invoking the std::string constructor that takes const char*. But any compiler these days...
Are there pronounceable names for common Haskell operators? [closed]
...r
main = translateLn <$> getLine >>= putStrLn
translateLn :: String -> String
translateLn = unwords . map t . words
t :: String -> String -- t(ranslate)
-- historical accurate naming
t "=" = "is equal too" -- The Whetstone of Witte - Robert Recorde (1557)
-- proposed namings
-...
Auto increment in phpmyadmin
...r table
Click on the pencil of the variable you want auto_increment
under "Extra" tab choose "auto_increment"
then go to "Operations" tab of your table
Under "Table options" -> auto_increment type -> 10000
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Does SQLAlchemy have an equivalent of Django's get_or_create?
...= 'countries'
id = Column(Integer, primary_key=True)
name = Column(String, unique=True)
To get or create my object I write :
myCountry = get_or_create(session, Country, name=countryName)
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How to check what version of jQuery is loaded?
...ote a third simple command to pull the jQuery version. $_ should return a string containing the version number.
If you get back a version number -- usually as a string -- then jQuery is loaded and that is what version you're working with. If not loaded then you should get back undefined or mayb...
How to remove local (untracked) files from the current Git working tree
...At the end, it makes for a nice alias:
git iclean
That being said, the extra hand holding of interactive commands can be tiring for experienced users. These days I just use the already mentioned git clean -fd
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How do I create 7-Zip archives with .NET?
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LOL? Change the cookie by a string... a file or whatever... lol?
– Patrick Desjardins
Oct 21 '08 at 14:22
1
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TypeError: $.ajax(…) is not a function?
...
data: postedData,
dataType: 'json',
success: callback
});
You had extra brackets next to $.ajax which were not needed. If you still get the error, then the jQuery script file is not loaded.
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