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<?xml version="1.0" encoding="UTF-8"?>

<persistence xmlns="http://java.sun.com/xml/ns/persistence"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
   http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
	version="1.0">


	<!-- derby -->

altitdb

private void OutputJaxpImplementationInfo() {
	    System.out.println(getJaxpImplementationInfo("DocumentBuilderFactory", DocumentBuilderFactory.newInstance().getClass()));
	    System.out.println(getJaxpImplementationInfo("XPathFactory", XPathFactory.newInstance().getClass()));
	    System.out.println(getJaxpImplementationInfo("TransformerFactory", TransformerFactory.newInstance().getClass()));
	    System.out.println(getJaxpImplementationInfo("SAXParserFactory", SAXParserFactory.newInstance().getClass()));
	}

	private String getJaxpImplementationInfo(String componentName, Class componentClass) {
	    CodeSource source = componentClass.getProtectionDomain().getCodeSource();
	    return MessageFormat.format(

altitdb

@MySQL

Liberar acesso de outros hosts.

grant all on *.* to root@'%' identified by 'root';

altitdb

How do I Download m2eclipse?

Maven - http://download.eclipse.org/technology/m2e/releases

https://support.sonatype.com/entries/20914842.html?__utma=246996102.2011723869.1343932852.1343932852.1343933261.2&__utmb=246996102.8.10.1343933261&__utmc=246996102&__utmx=-&__utmz=246996102.1343933261.2.2.utmcsr=google|utmccn=%28organic%29|utmcmd=organic|utmctr=%28not%20provided%29&__utmv=-&__utmk=12338743

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@Oracle

Atribuir privilégios de DBA para usuário.

GRANT DBA TO my_user;

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@Oracle

Deletar usuário e objetos.

drop user my_user cascade;

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@Oracle

Listar todos os usuários.

select * from dba_users;

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@Oracle

Alterar senha usuário.

1.
alter user my_user identified by my_password;

2.
alter user my_user identified by values 'code_hash_generated_by_oracle';

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@Oracle

Exportar/Importar database.

Export FULL:
exp my_user/my_password@my_database full=y file=name_my_dump.dmp

Import FULL:
imp my_user/my_password@my_database full=y file=name_my_dump.dmp

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@Java

When you override the equals method, you must adhere to its general contract. Here 
is the contract, copied from the specification for java.lang.Object:

The equals method implements an equivalence relation:

• It is reflexive: For any reference value x, x.equals(x) must return true.
• It is symmetric: For any reference values x and y, x.equals(y) must return true 
if and only if y.equals(x) returns true.