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How can I combine multiple rows into a comma-delimited list in Oracle? [duplicate]
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insert into countries values ('Albania');
insert into countries values ('Andorra');
insert into countries values ('Antigua');
SELECT SUBSTR (SYS_CONNECT_BY_PATH (country_name , ','), 2) csv
FROM (SELECT country_name , ROW_NUMBER () OVER (ORDER BY country_name ) rn,
COUN...
Loop through a date range with JavaScript
...dding one day causes the date to roll over to the next month if necessary, and without messing around with milliseconds. Daylight savings aren't an issue either.
var now = new Date();
var daysOfYear = [];
for (var d = new Date(2012, 0, 1); d <= now; d.setDate(d.getDate() + 1)) {
daysOfYear.p...
Trying to SSH into an Amazon Ec2 instance - permission error
...our key file must not be publicly viewable for SSH to work. Use this
command if needed: chmod 400 mykey.pem
400 protects it by making it read only and only for the owner.
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Free XML Formatting tool [closed]
...free XML formatting (indent) tool available where I can past an XML string and have it formatted so I can read the XML document correctly?
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Good introduction to the .NET Reactive Framework [closed]
Aside from the Microsoft documentation, is there a good introduction and tutorial to the Microsoft Reactive (Rx) framework?
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Detecting if an NSString contains…?
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Actually you can just add space on the beginning and end of the string and " is " will match string begins with "is"
– user4951
Nov 12 '12 at 7:41
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Delete everything in a MongoDB database
...way everything in a database—that is, to delete every single collection, and whatever else might be lying around, and start from scratch. Is there a single line of code that will let me do this? Bonus points for giving both a MongoDB console method and a MongoDB Ruby driver method.
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Asp.net 4.0 has not been registered
...xed this issue by running
aspnet_regiis -i
using the visual studio command line tools as an administrator
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How to convert a string from uppercase to lowercase in Bash? [duplicate]
...se to lower case. All the search results show approaches of using tr command.
7 Answers
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Parse rfc3339 date strings in Python? [duplicate]
...rror if the seconds are omitted, e.g). The dateutil parser, on the other hand, handles these much better.
– Alex North-Keys
Apr 25 '17 at 15:46
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