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How to set auto increment primary key in PostgreSQL?
...hould always be using a primary key on your table because postgresql internally uses hash table structures to increase the speed of inserts, deletes, updates and selects. If a primary key column (which is forced unique and non-null) is available, it can be depended on to provide a unique seed for t...
Ruby on Rails: getting the max value from a DB column
...uery as Bar.maximum(:bar) so I see no reason to "recommend" this answer at all ...
– nathanvda
Oct 27 '14 at 15:42
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Create PostgreSQL ROLE (user) if it doesn't exist
.... The DO statement uses plpgsql as default procedural language. The syntax allows to omit the explicit declaration:
DO [ LANGUAGE lang_name ] code
...
lang_name
The name of the procedural language the code is written in. If
omitted, the default is plpgsql.
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What does the > (greater than bracket) mean beside file names in Eclipse's Package Explorer?
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OK, have found that this is all configurable in Preferences: Team >> SVN >> Label Decorations. Thanks for the pointer. Will accept your answer once the 10 minute time limit is over.
– Stu Thompson
Dec...
VB.NET equivalent of C# property shorthand?
...ring
This will be handled as your short version in C# is - I think they call it "Auto Property"
See also: Auto-Implemented Properties (Visual Basic)
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Why does a RegExp with global flag give wrong results?
...stIndex);
result.push(re.test('Foo Bar'));
If you don't want to manually reset lastIndex to 0 after every test, just remove the g flag.
Here's the algorithm that the specs dictate (section 15.10.6.2):
RegExp.prototype.exec(string)
Performs
a regular expression match of string
against the reg...
Not class selector in jQuery
... It is quicker now that the vast majority of browsers support querySelectorAll, but that hasn't always been the case.
– lonesomeday
Jul 23 '13 at 8:18
4
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Is there an Eclipse plugin to run system shell in the Console? [closed]
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In case you haven't installed something that depends on it already, you will first have to do Install New Software -> General Purpose Tools -> Remote System Explorer End-User Runtime.
– Glyph
Apr 29 '10 a...
A weighted version of random.choice
..., this is an order of magnitude slower than random.choices for individual calls. If you need a lot of random results, it's really important to pick them all at once by adjusting number_of_items_to_pick. If you do so, it's an order of magnitude faster.
– jpmc26
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Can clearInterval() be called inside setInterval()?
... is working, sometimes it is not. I am wondering if the clearInterval actually clear the timer?? because there is this monitor button that will only be disabled when it is in monitoring function. I have another clearInterval when an element called .outputRemove is clicked. See the code bel...