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Oracle: how to UPSERT (update or insert into a table?)
...drop table mergetest;
create table mergetest(a number, b number);
call ups(10);
call ups(10);
call ups(20);
select * from mergetest;
A B
---------------------- ----------------------
10 2
20 1
...
PostgreSQL naming conventions
... (for general SQL) here, all with several related links.
Note: Postgresql 10 introduced identity columns as an SQL-compliant replacement for serial.
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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
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edited May 24 '10 at 3:07
answered May 24 '10 at 3:02
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Can you explain the HttpURLConnection connection process?
...pay the bill, that could be an IOException. (NOTE: This section may not be 100% correct. It's intended to give you a general idea of what's happening in layman's terms.)
Question #5:
Yes, you are correct that openConnection simply creates a new connection object but does not establish it. The conn...
How can I redirect the output of the “time” command?
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104
you can redirect the time output using,
(time ls) &> file
Because you need to take (...
How can I order a List?
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Default
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answered Apr 18 '12 at 14:27
Richard DaltonRi...
Haskell: Lists, Arrays, Vectors, Sequences
...ike
ones :: [Integer]
ones = 1:ones
twos = map (+1) ones
tenTwos = take 10 twos
work wonderfully. Infinite data structures rock.
Lists in Haskell provide an interface much like iterators in imperative languages (because of laziness). So, it makes sense that they are widely used.
On the ot...
What's the difference between IEquatable and just overriding Object.Equals()?
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edited Feb 14 at 14:10
openshac
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answered A...
Do declared properties require a corresponding instance variable?
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answered Jun 19 '10 at 4:26
jbrennanjbrennan
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ValueError: invalid literal for int() with base 10: ''
... line 1, in <module>
ValueError: invalid literal for int() with base 10: '55063.000000'
Got me here...
>>> int(float('55063.000000'))
55063.0
Has to be used!
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