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Adding an identity to an existing column
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In SQL 2005 and above, there's a trick to solve this problem without changing the table's data pages. This is important for large tables where touching every data page can take minutes or hours. The trick also works even if the ide...
Why are functions in Ocaml/F# not recursive by default?
...s = 0::ys and ys = 1::xs.
– J D
Apr 20 at 16:10
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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
....3 to 9.5 like this
– fnicollet
May 20 '16 at 9:51
3
Worked beautifully for upgrading from 9.1 to...
Where do I find the current C or C++ standard documents?
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PDF versions of the standard
As of 1st September 2014, the best locations by price for C and C++ standards documents in PDF are:
C++17 – ISO/IEC 14882:2017: $116 from ansi.org
C++14 – ISO/IEC 14882:2014: $90 NZD (about $60 US) from Standards New Zealand
C++11 – ISO/...
rails - Devise - Handling - devise_error_messages
...n.
– Benjamin Atkin
Oct 13 '12 at 1:20
... I don't think this answers the question although it is a good research work...
mongoDB/mongoose: unique if not null
...d like a charm.
– Phil
Apr 4 '19 at 20:33
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How to validate phone numbers using regex
...ferently.
– scunliffe
Mar 30 '12 at 20:19
31
How the hell is this such a highly voted answer? Thi...
Android : Check whether the phone is dual SIM
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answered Jan 7 '15 at 20:21
zafar142003zafar142003
1,86422 gold badges1515 silver badges2828 bronze badges
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How to create a density plot in matplotlib?
...5]*3 + [5.5]*1 + [6.5]*8
density = gaussian_kde(data)
xs = np.linspace(0,8,200)
density.covariance_factor = lambda : .25
density._compute_covariance()
plt.plot(xs,density(xs))
plt.show()
I get
which is pretty close to what you are getting from R. What have I done? gaussian_kde uses a changable ...
Adding up BigDecimals using Streams
...onterException
– gstackoverflow
Sep 20 '17 at 12:17
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