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Most tricky/useful commands for gdb debugger [closed]
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SPAN vs DIV (inline-block)
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Danger14
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answered Oct 23 '09 at 2:11
cletuscletus
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Find MongoDB records where array field is not empty
...lution:
ME.find({ pictures: { $exists: true, $ne: [] } })
Since MongoDB 2.6 release, you can compare with the operator $gt but could lead to unexpected results (you can find a detailled explanation in this answer):
ME.find({ pictures: { $gt: [] } })
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How can I quantify difference between two images?
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How can I edit a view using phpMyAdmin 3.2.4?
I need to simply edit a very complicated view in phpMyAdmin 3.2.4 but I cannot figure how to do that. Any suggestions?
Thanks!
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Multiple Type Constraints in Swift
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You can use a where clause which lets you specify as many requirements as you want (all of whi...
what is the unsigned datatype?
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answered Jul 23 '09 at 13:46
Martin v. LöwisMartin v. Löwis
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How to handle exceptions in a list comprehensions?
...ruth: 1) literally, i.e. lexically IN the comprehension itself, you can't; 2) practically, you delegate the job to a function or check for error prone values when that's feasible. Your repeated claim that this is not an answer is thus unfounded.
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Saving and loading objects and using pickle
...implementation of the pickle module in C. So:
In [1]: import cPickle
In [2]: d = {"a": 1, "b": 2}
In [4]: with open(r"someobject.pickle", "wb") as output_file:
...: cPickle.dump(d, output_file)
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# pickle_file will be closed at this point, preventing your from accessing it any furth...
How to select unique records by SQL
... column names, you get distinct records:
SELECT DISTINCT column 1, column 2, ...
FROM table_name;
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