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Is there a REAL performance difference between INT and VARCHAR primary keys?
...
I was a bit annoyed by the lack of benchmarks for this online, so I ran a test myself.
Note though that I don't do it on a regular basic, so please check my setup and steps for any factors that could have influenced the results unintentionally, and post your concerns in comment...
Foreign Key to non-primary key
...y key, it MUST be a column that has a unique constraint on it.
From Books Online:
A FOREIGN KEY constraint does not have to be linked only to a PRIMARY
KEY constraint in another table; it can also be defined to reference
the columns of a UNIQUE constraint in another table.
So in your case...
Is there a numpy builtin to reject outliers from a list
...ation of the standard deviation (assuming Gaussian statistics). Looking up online calculators, I see that the 90% percentile corresponds to 1.2815σ and the 95% is 1.645σ (http://vassarstats.net/tabs.html?#z)
As a simple example:
import numpy as np
# Create some random numbers
x = np.random.norm...
Why doesn't TFS get latest get the latest?
...rol, since they present a much nicer workflow. You are not required to be online, and you do not have to explicitly check files out before editing them.
TFVC Local Workspaces are the default in TFS 2012, and if they are not enabled for you, then you should ask your server administrator. (Organiza...
CSS overflow-x: visible; and overflow-y: hidden; causing scrollbar issue
...o property to sidebar inner wrapper
Please check the example below or an online codepen.
html {
min-height: 100%;
}
body {
min-height: 100%;
background: linear-gradient(to bottom, white, DarkGray 80%);
margin: 0;
padding: 0;
}
.sidebar {
position: fixed;
top: 0;
...
How to encrypt/decrypt data in php?
...P, I'm trying to make a simple encrypt/decrypt of data in PHP. I made some online research and some of them were quite confusing(at least for me).
...
What's the right OAuth 2.0 flow for a mobile app
...ion: Mobile App = Native App
As stated in other comments and a few sources online, implicit seems like a natural fit for mobile apps, however the best solution is not always clear cut (and in fact implicit is not recommended for reasons discussed below).
Native App OAuth2 Best Practises
Whatever app...
base64 encoded images in email signatures
...your question is how to properly insert such an image tag.
You can use an online tool or a few lines of code to generate the base 64 string.
The syntax to source the image from inline data is:
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38G...
Can I unshelve to a different branch in tfs 2008?
... to the new branch. Tip: Make sure you copy to the right place!!!
Bring VS online
It should find all the changes and add the new files
If it asks you to bind the sourcecontrol be sure to verify the path is correct for the new branch.
Test - and then checkin the new files
Important: I've found that...
Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
...
@user1923613 github.com/octo-online/robospice if you are using volley for network calls then no need to use robospice!, volley does the many of the things that Robospice do for network calls,Robospice supports REST out of the box (using Spring Android or...