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Database design for audit logging
...a of what the old record looked like.
So for example, if you had a table called Opportunities to track sales deals, you would actually create two separate tables:
Opportunities
Opportunities_Content (or something like that)
The Opportunities table would have information you'd use to uniquely iden...
How can I change the cache path for npm (or completely disable the cache) on Windows?
I've installed Node.js on my Windows 7 x64 development machine, the manual way:
5 Answers
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JMS Topic vs Queues
... to debug some subscriber and when sending a topic the subscriber was not called but when sending to the queue it worked
– vmrvictor
Jul 23 '19 at 10:25
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What is the effect of encoding an image in base64?
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Here's a really helpful overview of when to base64 encode and when not to by David Calhoun.
Basic answer = gzipped base64 encoded files will be roughly comparable in file size to standard binary (jpg/png). Gzip'd binary files will ha...
MySQL error 1449: The user specified as a definer does not exist
... options:
1. Change the DEFINER
This is possibly easiest to do when initially importing your database objects, by removing any DEFINER statements from the dump.
Changing the definer later is a more little tricky:
How to change the definer for views
Run this SQL to generate the necessary ALTER ...
How does Python manage int and long?
Does anybody know how Python manage internally int and long types?
9 Answers
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Split list into smaller lists (split in half)
...6]
B = A[:len(A)//2]
C = A[len(A)//2:]
If you want a function:
def split_list(a_list):
half = len(a_list)//2
return a_list[:half], a_list[half:]
A = [1,2,3,4,5,6]
B, C = split_list(A)
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How to change a git submodule to point to a subfolder?
...eated a submodule out of the boto project . Then, I discovered that I actually need only a subset of this project - specifically, the boto folder.
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How to get the top 10 values in postgresql?
...y
As @Raphvanns pointed out, this will give you the first 10 rows literally. To remove duplicate values, you have to select distinct rows, e.g.
select distinct *
from scores
order by score desc
fetch first 10 rows only
SQL Fiddle
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C++ auto keyword. Why is it magic?
From all the material I used to learn C++, auto has always been a weird storage duration specifier that didn't serve any purpose. But just recently, I encountered code that used it as a type name in and of itself. Out of curiosity I tried it, and it assumes the type of whatever I happen to assig...