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What is Normalisation (or Normalization)?
...led flattened) used in performance critical applications.
My advise is to start with good degree of normalisation and only do de-normalisation when really needed
P.S. also check this article: http://en.wikipedia.org/wiki/Database_normalization to read more on the subject and about so-called norma...
Are soft deletes a good idea? [duplicate]
...ng is fairly trivial; it's the accumulation of lots of trivial things that starts to cause problems. As I said in my last sentence, I would expect a developer to have a good reason for increasing the complexity of the system in this way. I'm disappointed but not at all surprised to see so many devel...
R script line numbers at error?
... R), call the main script in batch mode using Rscript myMainScript.R. This starts a new non-interactive R session and runs the script myMainScript.R. The code snippet given in step 1 that has been placed at the top of myMainScript.R sets the error handling option for the non-interactive R session.
E...
Why does the 260 character path length limit exist in Windows?
...ws 10. you can remove the limitation by modifying a registry key.
Tip Starting in Windows 10, version 1607, MAX_PATH limitations have been removed from common Win32 file and directory functions. However, you must opt-in to the new behavior.
A registry key allows you to enable or disable th...
Does order of where clauses matter in SQL?
... as well as it could or (2) It's a compile-time error and SQL doesn't even start to try to compare anything, bailing out preliminary. My guess is that it's nr. 2.
– Louis Somers
Nov 24 '17 at 8:47
...
How to implement a secure REST API with node.js
I start planning a REST API with node.js ,express and mongodb. The API provides data for a website (public and private area) and maybe later a mobile app. The frontend will be developed with AngularJS.
...
How to import a Python class that is in a directory above?
...s not already on sys.path) prepend temporarily insert said dir at the very start of sys.path, __import__, remove said dir again -- messy work indeed, but, "when you must, you must" (and Pyhon strives to never stop the programmer from doing what must be done -- just like the ISO C standard says in th...
Display open transactions in MySQL
... for you, as in the following example where the server was shut down and restarted between the first and second statements without you knowing it:
Also see: http://dev.mysql.com/doc/refman/5.0/en/auto-reconnect.html
How to diagnose and fix this
To check for auto-reconnection:
If an automat...
What “things” can be injected into others in Angular.js?
...cation has a single $injector that gets created when the application first starts; you can get a hold of it by injecting $injector into any injectable function (yes, $injector knows how to inject itself!)
Once you have $injector, you can get an instance of a defined service by calling get on it wit...
Synchronise ScrollView scroll positions - android
...l the X and Y coordinates while the scrollview moves. It only gives me the starting position and the last position. Say for ex- I start the fling from Y=10 and leave at Y=30 and then fling velocity takes it to Y = 50 and then stops. So onscrollchanged only registers-perhaps 10, 11, 12..30 and then 4...