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PostgreSQL Crosstab Query
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@JohnBarça: A simple case like this can easily be solved with CASE statements. However, this gets unwieldy very quickly with more attributes and / or other data types than just integers. As an aside: this form uses the aggregate fun...
How can I divide two integers to get a double?
...ally use double and not float. When you write a variable just like var a = 1.0;, this 1.0 is always a double. I guess this is the main reason.
– this.myself
Feb 27 '18 at 13:37
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decorators in the python standard lib (@deprecated specifically)
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Example Usage
import deprecation
@deprecation.deprecated(deprecated_in="1.0", removed_in="2.0",
current_version=__version__,
details="Use the bar function instead")
def foo():
"""Do some stuff"""
return 1
See http://deprecation.readthedocs...
HTML Script tag: type or language (or omit both)?
... the default value. Hence, you don't need type either.
For pages in XHTML 1.0 or HTML 4.01 omitting type is considered invalid. Try validating the following:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xml...
When is a CDATA section necessary within a script tag?
...cript>
When browsers treat the markup as HTML and you want your XHTML 1.0 markup (for example) to validate.
<script>
//<![CDATA[
...code...
//]]>
</script>
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How can i get the session object if i have the entity-manager
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To be totally exhaustive, things are different if you're using a JPA 1.0 or a JPA 2.0 implementation.
JPA 1.0
With JPA 1.0, you'd have to use EntityManager#getDelegate(). But keep in mind that the result of this method is implementation specific i.e. non portable from application server usi...
Ball to Ball Collision - Detection and Handling
....0) { // hack to avoid div by zero
collision = Vector(1.0, 0.0);
distance = 1.0;
}
if (distance > 1.0)
return;
// Get the components of the velocity vectors which are parallel to the collision.
// The perpendicular component remains the same f...
JSON left out Infinity and NaN; JSON status in ECMAScript?
...y do support the representation of these three special values (See W3C XSD 1.0 Part 2, Datatypes).
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In Gradle, how do I declare common dependencies in a single place?
...dencies {
classpath 'io.spring.gradle:dependency-management-plugin:1.0.0.RELEASE'
}
}
repositories {
mavenLocal()
jcenter()
}
apply plugin: 'java'
apply plugin: 'io.spring.dependency-management'
dependencyManagement {
imports {
mavenBom 'io.spring.platform:platform...
Difference between JAX-WS, Axis2 and CXF
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Web Service organization reles some guidelines i.e BP(Basic Profile) 1.0 and BP(Basic Profile) 1.1.
Base on the Guidelines All Language(Java/.Net) people release Specification with Default implementation
In java Base on BP 1.0 Specification Is JAX-RPC And 1.0 Specification Is JAX-WS
JAX-WS De...