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What is the difference between XML and XSD?
...fines an element.
xs:sequence : Denotes child elements only appear in the order mentioned.
xs:complexType : Denotes it contains other elements.
xs:simpleType : Denotes they do not contain other elements.
type:
string,
decimal,
integer,
boolean,
date,
time,
In simple words, xsd is another way t...
Why is Linux called a monolithic kernel?
...onolithic sub-systems need to synchronize multiple values at one time. In order to do this, they must use locks and will suffer from Amdahl's law when extended to parallel architectures. The counter is that microkernels result in lots of IPC messages.
A major development is the use of lock-free p...
JavaScript listener, “keypress” doesn't detect backspace?
...
Try keydown instead of keypress.
The keyboard events occur in this order: keydown, keyup, keypress
The problem with backspace probably is, that the browser will navigate back on keyup and thus your page will not see the keypress event.
...
Scala: Abstract types vs generics
...ed type abstraction
abstract class MaxCell extends AbsCell {
type T <: Ordered { type O = T }
def setMax(x: T) = if (get < x) set(x)
}
Here, the type declaration of T is constrained by an upper type bound which consists of a class name Ordered and a refinement { type O = T }.
The upper...
How can I convert ereg expressions to preg in PHP?
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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What's the difference between HEAD^ and HEAD~ in Git?
...Both commit nodes B and C are parents of commit node A. Parent commits are ordered left-to-right. (N.B. The git log --graph command displays history in the opposite order.)
G H I J
\ / \ /
D E F
\ | / \
\ | / |
\|/ |
B C
\ /
\ /
...
How to train an artificial neural network to play Diablo 2 using visual input?
...thus you need to implement and combine a lot of different AI approaches in order to solve it.
Several decades of research with a whole team working on it would may not suffice, so if you are alone and working on it in part-time (as you probably have a job for a living) you may spend a whole lifetim...
google chrome extension :: console.log() from background page?
...an still use console.log(), but it gets logged into a separate console.
In order to view it - right click on the extension icon and select "Inspect popup".
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SQL Server Linked Server Example Query
...ver will likely be downloaded to the server the query is executing from in order to do the join operation. In the OP's case, both table1 from DB1 and table1 from DB2 will be transferred in their entirety to the server executing the query, presumably named DB3.
If you have large tables, this may ...
PostgreSQL error: Fatal: role “username” does not exist
... system user to have initialized the database cluster. The manual:
In order to bootstrap the database system, a freshly initialized
system always contains one predefined role. This role is always a
“superuser”, and by default (unless altered when running initdb) it
will have the same ...