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Best design for a changelog / auditing database table? [closed]
...D
That's when design of our audit log really stabilized (for a few years now).
Of course, the last "improvement" would work only for tables that had surrogate keys. But guess what? All our tables that are worth auditing do have such a key!
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How dangerous is it to compare floating point values?
I know UIKit uses CGFloat because of the resolution independent coordinate system.
11 Answers
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What would a “frozen dict” be?
...to want such a type is when memoizing function calls for functions with unknown arguments. The most common solution to store a hashable equivalent of a dict (where the values are hashable) is something like tuple(sorted(kwargs.iteritems())).
This depends on the sorting not being a bit insane. Pyth...
Java maximum memory on Windows XP
...n't rebase those libraries, so they
are still a problem for us.
We know how to make chunked heaps, but
there would be some overhead to using
them. We have more requests for faster
storage management than we do for
larger heaps in the 32-bit JVM. If you
really want large heaps, switc...
How to check file MIME type with javascript before upload?
... that the file MIME type could be checked using javascript on client side. Now, I understand that the real validation still has to be done on server side. I want to perform a client side checking to avoid unnecessary wastage of server resource.
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What is the most efficient/elegant way to parse a flat table into a tree?
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Now that MySQL 8.0 supports recursive queries, we can say that all popular SQL databases support recursive queries in standard syntax.
WITH RECURSIVE MyTree AS (
SELECT * FROM MyTable WHERE ParentId IS NULL
UNION ALL...
What is the point of interfaces in PHP?
...ady abstract classes?
To prevent multiple inheritance (can cause multiple known problems).
One of such problems:
The "diamond problem" (sometimes referred to as the "deadly diamond of
death") is an ambiguity that arises when two classes B and C inherit
from A and class D inherits from both ...
ArrayIndexOutOfBoundsException with custom Android Adapter for multiple views in ListView
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You got 38 upvote for the answer till now so this may be a perfect answer,but please add some more text for explaining the problem and how to resolve it..cause I still cant understand much from this.
– Chirag Patel
Apr 24 '1...
Sqlite or MySql? How to decide? [closed]
...r an Athlon 1600. 1GB RAM. 5400RPM IDE disk. Redhat 7.3. He concludes: «I now believe that SQLite is appropriate for use as the primary database on websites that get up to 1 million hits per day.»
– Rutrus
Dec 27 '16 at 0:45
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What is code coverage and how do YOU measure it?
...n't used them. I've also heard there's the gcov tool for GCC, but I don't know anything about it and can't give you a link.
As to how we use it - code coverage is one of our exit criteria for each milestone. We have actually three code coverage metrics - coverage from unit tests (from the developme...