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How do I create an average from a Ruby array?
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edited May 10 '15 at 14:40
Joshua Pinter
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Listing only directories using ls in Bash?
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1034
*/ is a pattern that matches all of the subdirectories in the current directory (* would matc...
How to install a specific version of a ruby gem?
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1182
Use the -v flag:
$ gem install fog -v 1.8
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SQL query for finding records where count > 1
...nt
FROM
PAYMENT
GROUP BY
account,
user_id ,
date
Having
COUNT(*) > 1
Update
If you want to only include those that have a distinct ZIP you can get a distinct set first and then perform you HAVING/GROUP BY
SELECT
user_id,
account_no ,
date,
COUNT(*)
FROM
(SELECT...
How to get week number in Python?
How to find out what week number is current year on June 16th (wk24) with Python?
14 Answers
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How do SQL EXISTS statements work?
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edited Oct 23 '16 at 0:55
answered Apr 30 '12 at 7:06
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Selecting data frame rows based on partial string match in a column
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150
I notice that you mention a function %like% in your current approach. I don't know if that's a...
What exactly is a C pointer if not a memory address?
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149
The C standard does not define what a pointer is internally and how it works internally. This ...
Delete all data in SQL Server database
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10 Answers
10
Active
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Why do some C# lambda expressions compile to static methods?
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153
This is most likely because there are no closures, for example:
int age = 25;
Action<strin...