大约有 30,000 项符合查询结果（耗时：0.0603秒） [XML]
Foreign key constraints: When to use ON UPDATE and ON DELETE
...containing people from theses company
CREATE TABLE COMPANY (
company_id INT NOT NULL,
company_name VARCHAR(50),
PRIMARY KEY (company_id)
) ENGINE=INNODB;
CREATE TABLE USER (
user_id INT,
user_name VARCHAR(50),
company_id INT,
INDEX company_id_idx (company_id),
...
Drawing a connecting line between two elements [closed]
... the Flowchart demo.
It is available in a free Community edition, and a paid Toolkit edition.
The Toolkit edition wraps the Community edition with a comprehensive data binding layer, as well as several UI widgets for building applications and integrations for popular libraries, and is commercia...
RabbitMQ and relationship between channel and connection
...tach the same Consumer to multiple Queues.
You can understand Consumers as callbacks. These are called everytime a message arrives on a Queue the Consumer is bound to. For the case of the Java Client, each Consumers has a method handleDelivery(...), which represents the callback method. What you typ...
Store query result in a variable using in PL/pgSQL
...g for SELECT INTO:
select test_table.name into name from test_table where id = x;
That will pull the name from test_table where id is your function's argument and leave it in the name variable. Don't leave out the table name prefix on test_table.name or you'll get complaints about an ambiguous re...
JSTL in JSF2 Facelets… makes sense?
...e which do not extend from UIComponent are also taghandlers, e.g. <f:validator>, <ui:include>, <ui:define>, etc. The ones which extend from UIComponent are also JSF UI components, e.g. <f:param>, <ui:fragment>, <ui:repeat>, etc. From JSF UI components only the id ...
Multiline TextView in Android?
I did like below in xml
18 Answers
18
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What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
...nt entity. A parent can have several children.
@Entity
class parent {
//id and other fields
@OneToMany (orphanRemoval = "true",cascade = CascadeType.REMOVE)
Set<Person> myChildern;
}
The orphanRemoval is an ORM concept, it tells if the child is orphaned. it should also be removed from...
Can you require two form fields to match with HTML5?
...
Not exactly with HTML5 validation but a little JavaScript can resolve the issue, follow the example below:
<p>Password:</p>
<input name="password" required="required" type="password" id="password" />
<p>Confirm Password:</p...
how to ignore namespaces with XPath
...
You could use Namespace = false on a XmlTextReader
[TestMethod]
public void MyTestMethod()
{
string _withXmlns = @"<?xml version=""1.0"" encoding=""utf-8""?>
<ParentTag xmlns=""http://anyNamespace.com"">
<Identification value=""ID123456"" />
</ParentTag>
";
var xml...
Programmatically register a broadcast receiver
I'd like to know what is the best practice/way of programmatically register a broadcast receiver. I want to register specific receivers according to user choice.
...