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How to thoroughly purge and reinstall postgresql on ubuntu? [closed]
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Ver Cluster Port Status Owner Data directory Log file
11 main 5432 online postgres /var/lib/postgresql/11/main /var/log/postgresql/postgresql-11-main.log
$ sudo systemctl stop postgresql@11-main
$ sudo pg_dropcluster --stop 11 main
$ sudo pg_createcluster --start 11 main
O...
how can I see what ports mongo is listening on from mongo shell?
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edited Nov 30 '15 at 11:30
answered Feb 20 '12 at 12:24
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Does Ruby have a string.startswith(“abc”) built in method?
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Community♦
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answered Nov 9 '10 at 4:48
Jörg W MittagJörg W Mittag
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Can you attach Amazon EBS to multiple instances?
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11 Answers
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How to sum up an array of integers in C#
...dable.
– Ahmad Mageed
Mar 16 '10 at 11:34
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How to do INSERT into a table records extracted from another table
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actually if no. of columns and their types are same and those exits in same order in the tables then you can simply say, INSERT INTO Table2...
How do I remove all .pyc files from a project?
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find . -name "*.pyc" -exec rm -f {} \;
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Generate JSON string from NSDictionary in iOS
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edited May 11 '18 at 8:24
Itachi
4,41522 gold badges2828 silver badges6060 bronze badges
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Good examples of Not a Functor/Functor/Applicative/Monad?
...like:
mkarray [(+10), (+100), id] <*> mkarray [1, 2]
== mkarray [[11, 101, 1], [12, 102, 2]]
But if you make it a monad, you could get a dimension mismatch. I suspect that examples like this are rare in practice.
A type constructor which is a Monad:
[]
About Arrows:
Asking where an ...
How to calculate time difference in java?
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String time1 = "16:00:00";
String time2 = "19:00:00";
SimpleDateFormat format = new SimpleDat...