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How Pony (ORM) does its tricks?
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210
Pony ORM author is here.
Pony translates Python generator into SQL query in three steps:
Dec...
What is the difference between varchar and varchar2 in Oracle?
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MK.
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answered Jul 23 '09 at 11:41
QuassnoiQuassnoi
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How do I reflect over the members of dynamic object?
... please.
– Demodave
Jun 14 '17 at 9:10
add a comment
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Remove .php extension with .htaccess
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answered Oct 26 '10 at 18:51
PekkaPekka
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How to sort in-place using the merge sort algorithm?
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What is the purpose of setting a key in data.table?
... "cold" by
require(data.table)
DT <- data.table(x=rep(1:5, each=2), y=1:10)
DT[, mean(y), by=x] # no key is set, order of groups preserved in result
However, prior to v1.9.6, joins of the form x[i] required key to be set on x. With the new on= argument from v1.9.6+, this is not true anymore, an...
How to convert string into float in JavaScript?
...sakJesse Rusak
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6
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JavaScript for…in vs for
...hing; i++)"
– Denilson Sá Maia
Apr 10 '10 at 18:03
For performance reasons, IMO it's better to evaluate the length of...
sqlalchemy IS NOT NULL select
...rColumn') != None
<sqlalchemy.sql.elements.BinaryExpression object at 0x10c8d8b90>
>>> str(column('YourColumn') != None)
'"YourColumn" IS NOT NULL'
>>> column('YourColumn').isnot(None)
<sqlalchemy.sql.elements.BinaryExpression object at 0x104603850>
>>> str(col...
Replace only text inside a div using jquery
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cuSK
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answered Aug 8 '12 at 14:56
Brian UstasBrian Ustas
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