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What is the difference between save and insert in Mongo DB?
...is essentially the same.
save behaves differently if it is passed with an "_id" parameter.
For save, If the document contains _id, it will upsert querying the collection on the _id field, If not, it will insert.
If a document does not exist with the specified _id value, the save() method performs a...
Why is printing “B” dramatically slower than printing “#”?
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can you elaborate on your research strategies and then what finally led you to find out that line-wrapping was the culprit? (i'm curious ab...
SQLAlchemy ORDER BY DESCENDING?
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edited Sep 3 '19 at 11:32
SuperShoot
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How to know if an object has an attribute in Python
...or.
– ShadowRanger
Apr 25 '18 at 19:32
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Bulk insert with SQLAlchemy ORM
... = [
User(name="u1"),
User(name="u2"),
User(name="u3")
]
s.bulk_save_objects(objects)
s.commit()
Here, a bulk insert will be made.
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How to len(generator()) [duplicate]
...e advantages over functions that return lists. However, you could len(list_returning_function()) . Is there a way to len(generator_function()) ?
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Why use argparse rather than optparse?
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324
As of python 2.7, optparse is deprecated, and will hopefully go away in the future.
argparse ...
Testing the type of a DOM element in JavaScript
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edited Apr 11 '14 at 3:32
Jonathan Day
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How do you share code between projects/solutions in Visual Studio?
...ns that need to communicate to each other. One is 64 bit and the other is 32 so you do not necessarily want separate dlls built from the same code to reference form each project. This way you can mimic the c functionality of using a .h file.
– user912447
Apr ...
Iterating over all the keys of a map
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– Robert T. McGibbon
Feb 9 '15 at 3:32
func Keys(m map[interface{}]interface{}) (keys []interface{}), @RobertT.McGibbo...