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What is the difference between is_a and instanceof?
I am aware that instanceof is an operator and that is_a is a method.
9 Answers
9
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PostgreSQL return result set as JSON array?
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Himanshu sharmaHimanshu sharma
5,05322 gold badges3232 silver badges5454 bronze badges
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psql: FATAL: role “postgres” does not exist
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432
NOTE: If you installed postgres using homebrew, see the comment from @user3402754 below.
Note...
Loop backwards using indices in Python?
...as no way to tell the xrange to go backwards... (Since Python 2.6 it calls __reversed__().)
– Robert Siemer
Jun 21 '12 at 18:31
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Label Alignment in iOS 6 - UITextAlignment deprecated
...f UITextAlignmentCenter and a list of other replacements is below:
#ifdef __IPHONE_6_0 // iOS6 and later
# define UITextAlignmentCenter NSTextAlignmentCenter
# define UITextAlignmentLeft NSTextAlignmentLeft
# define UITextAlignmentRight NSTextAlignmentRight
# define UILineBreakM...
What is the best way to dump entire objects to a log in C#?
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edited Oct 27 '14 at 21:32
answered Oct 3 '14 at 15:14
Ja...
How to reset sequence in postgres and fill id column with new data?
...ich explains the ALTER SEQUENCE command ... so I changed 'seq' by mytable_id_seq where 'mytable' is my table name and 'id' is the name of my serial column
– Javi
May 4 at 9:19
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Optional Parameters in Go?
...a pointer.
– burfl
Mar 29 '18 at 11:32
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postgresql list and order tables by size
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Benjamin CrouzierBenjamin Crouzier
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How do I find duplicates across multiple columns?
...4,'jim','London')
, (904835,'jim','London')
, (90145,'Fred','Paris')
, (90132,'Fred','Paris')
, (90133,'Fred','Paris')
, (923457,'Barney','New York') # not expected in result
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SELECT
t.*
FROM (
SELECT
s.*
, COUNT(*) OVER (PARTITION BY s.name, s.city) AS qty
FROM stuff...