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Exposing database IDs - security risk?
... They are everywhere. Many shoppingsites use a sequential number for the order id. Place one order at one date, and one at another date and you know how many orders they got during that period. Even if you don't know how much money the orders are worth, you still get an indication of how the well ...
How to see indexes for a database or table in MySQL?
...ABLE_SCHEMA = 'mydb'
AND INDEX_NAME != 'primary'
GROUP BY TABLE_NAME
ORDER BY COUNT(1) DESC;
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MySQL dump by query
.... See: stackoverflow.com/a/17071108/1676044
– Kevin Borders
Mar 25 '14 at 15:05
...
Vagrant error : Failed to mount folders in Linux guest
...efault: Exporting NFS shared folders...
==> default: Preparing to edit /etc/exports. Administrator privileges will be required...
==> default: Mounting NFS shared folders...
==> default: VM already provisioned. Run `vagrant provision` or use `--provision` to force it
Just make sure you ar...
Reorder bars in geom_bar ggplot2
I am trying to make a bar-plot where the plot is ordered from the miRNA with the highest value to the miRNA with the lowest. Why does my code not work?
...
How does RegexOptions.Compiled work?
...ases where you reuse the Regex object. However in some cases can be over 3 orders of magnitude slower to construct.
It also shows that the x64 version of .NET can be 5 to 6 times slower when it comes to compilation of regular expressions.
The recommendation would be to use the compiled version i...
Things possible in IntelliJ that aren't possible in Eclipse?
...ess {
String getStreetAddress();
String getZipCode();
Country getCountry();
}
interface Person {
String getName();
Address getAddress();
int getAge();
}
//---
Person p;
Country c = p.<CTRL-SHIFT-SPACE>
and it will silently autocomplete it to
Country c = p.getAddress...
How do I select the “last child” with a specific class name in CSS? [duplicate]
...This allows your list item to have multiple classes if need be, in various order. It'll still find the exact class "list" and apply the style to the last one.
See a working example here: http://codepen.io/chasebank/pen/ZYyeab
Read more on attribute selectors:
http://css-tricks.com/attribute-selec...
Grouping functions (tapply, by, aggregate) and the *apply family
...a function to the 1st elements
of each, and then the 2nd elements of each, etc., coercing the result
to a vector/array as in sapply.
This is multivariate in the sense that your function must accept
multiple arguments.
#Sums the 1st elements, the 2nd elements, etc.
mapply(sum, 1:5, 1:5, 1:5)
[1] ...
R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?
...
x %-=% 3; x
y <- c('a', 'b', 'c')
y %+=% 'text'; y
y %-=% 'text'; y
# etc
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