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How to set auto increment primary key in PostgreSQL?
...tax error using bigserial or serial. Is there a minimum postgresql verison for this?
– dacDave
Dec 21 '16 at 1:21
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show 6 more comments
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How do I join two lines in vi?
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Vi or Vim?
Anyway, the following command works for Vim in 'nocompatible' mode. That is, I suppose, almost pure vi.
:join!
If you want to do it from normal command use
gJ
With 'gJ' you join lines as is -- without adding or removing whitespaces:
S<Switch_ID>_F&...
Best way to do multiple constructors in PHP
... you can't easily define the exact constraints of a problem, like creating form elements. but then, that's just my opinion and for the record; I don't claim it to be fact.
– Kris
Nov 9 '09 at 16:24
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Is there any difference between “foo is None” and “foo == None”?
...jects of type Foo it always returns true. There isn't an equivalent method for the is operator and so the behaviour of is cannot be changed in the same way.
– Brendan
Mar 3 '17 at 14:55
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Deleting rows with MySQL LEFT JOIN
I have two tables, one for job deadlines, one for describe a job. Each job can take a status and some statuses means the jobs' deadlines must be deleted from the other table.
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How do you get the “object reference” of an object in java when toString() and hashCode() have been
I would like to print the "object reference" of an object in Java for debugging purposes.
I.e. to make sure that the object is the same (or different) depending on the situation.
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Multiple github accounts on the same computer?
...dingly:
Setting user name, email and GitHub token – Overriding settings for individual repos
https://help.github.com/articles/setting-your-commit-email-address-in-git/
Hope this helps.
Note:
Some of you may require different emails to be used for different repositories, from git 2.13 you can se...
How to deep copy a list?
...list(...) and testList[:] are shallow copies).
You use copy.deepcopy(...) for deep copying a list.
deepcopy(x, memo=None, _nil=[])
Deep copy operation on arbitrary Python objects.
See the following snippet -
>>> a = [[1, 2, 3], [4, 5, 6]]
>>> b = list(a)
>>> a
[[...
Android: Is it possible to display video thumbnails?
... videos where each item consists of icon, video title, tags and location information the following way:
10 Answers
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How to set data attributes in HTML elements
...e
From the reference:
jQuery itself uses the .data() method to save information under the names 'events' and 'handle', and also reserves any data name starting with an underscore ('_') for internal use.
It should be noted that jQuery's data() doesn't change the data attribute in HTML.
So, i...