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Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities
What are some algorithms which we use daily that has O(1), O(n log n) and O(log n) complexities?
11 Answers
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How to merge dictionaries of dictionaries?
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this is actually quite tricky - particularly if you want a useful error message when things ar...
How do I exchange keys with values in a dictionary?
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17 Answers
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How to convert a List into a comma separated string without iterating List explicitly [dupli
Now i want an output from this list as 1,2,3,4 without explicitly iterating over it.
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MySQL Insert Where query
...mn is unique or primary key:
If you're trying to insert a new row with ID 1 you should be using:
INSERT INTO Users(id, weight, desiredWeight) VALUES(1, 160, 145);
If you're trying to change the weight/desiredWeight values for an existing row with ID 1 you should be using:
UPDATE Users SET weigh...
How to delete last item in list?
...icing notation to keep everything except the last item:
record = record[:-1]
But a better way is to delete the item directly:
del record[-1]
Note 1: Note that using record = record[:-1] does not really remove the last element, but assign the sublist to record. This makes a difference if you ru...
How to diff a commit with its parent?
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answered Jan 12 '09 at 18:06
mipadimipadi
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Difference between CTE and SubQuery?
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In the sub-query vs simple (non-recursive) CTE versions, they are probably very similar. You w...