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Insert, on duplicate update in PostgreSQL?
...h ON CONFLICT clause. with the following syntax (similar to MySQL)
INSERT INTO the_table (id, column_1, column_2)
VALUES (1, 'A', 'X'), (2, 'B', 'Y'), (3, 'C', 'Z')
ON CONFLICT (id) DO UPDATE
SET column_1 = excluded.column_1,
column_2 = excluded.column_2;
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How to get error message when ifstream open fails
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In MSVC, e.what() always prints the same message "iostream stream error"
– rustyx
Aug 11 '16 at 11:11
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How to prevent buttons from submitting forms
...be used PHP sessions and neither cookies are allowed!
So any link must be converted to such form submit, so the login data is not lost.
When no login is yet done, it must also work. So no validation must be performed on links.
But I want to present a message to the user if the user has not entered ...
How do I make an attributed string using Swift?
...UILabel.text = coffeeText I get an error "NSMutableAttributedString is not convertable to 'String'. Is there a way to make the UILabel accept NSMutableAttributedString?
– dcbenji
Jul 10 '14 at 4:25
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How to fix corrupted git repository?
... DropBox, SpiderOak, or any other cloud disk), you can do the following:
Convert your .git folder into a single "bundle" git file by using: git bundle create my_repo.git --all, then it should work just the same as before, but since everything is in a single file you won't risk the synchronization ...
Is there more to an interface than having the correct methods
So lets say I have this interface:
17 Answers
17
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Is there a difference between foreach and map?
...eturns another list of the same size with the transformed members (such as converting a list of strings to uppercase)
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What is the closest thing Windows has to fork()?
... doc:
5.6. Process Creation
The fork call in Cygwin is particularly interesting
because it does not map well on top of
the Win32 API. This makes it very
difficult to implement correctly.
Currently, the Cygwin fork is a
non-copy-on-write implementation
similar to what was present i...
Django - how to create a file and save it to a model's FileField?
...ile) works perfectly with the file string returned by django-wkhtmltopdf's convert_to_pdf command. Thank you!!
– Nostalg.io
Sep 1 '16 at 4:53
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Usage of EnsureSuccessStatusCode and handling of HttpRequestException it throws
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Is there any way to get the real integer status code? when I try this I get a string such as "NotFound" instead of the 404 status code.
– NickG
Feb 17 '16 at 16:13
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