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Subqueries vs joins
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Here's an example of how subqueries are evaluated in MySQL 6.0.
The new optimizer will convert this kind of subqueries into joins.
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中文网（自研/维护）拓展 · App Inventor 2 中文网
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HexaStringMode
Method to specify the mode (string or hexastring)
SeqNewLine
Method that returns a string containing “\n” sequence
SeqNewLineAndRet
Method that returns a string containing “\n\r” sequence
SeqRet
Method that returns a string containing “\r” sequence
SeqRe...
“Keep Me Logged In” - the best approach
...HING match with the hash from the database, which should also match with a newly calculated hash (for the ip) thus: cookieHash==databaseHash==md5(salt+username+ip+salt), if they do, goto 2, if they don't goto 1
Off course you can use different cookie names etc. also you can change the content of t...
How to handle button clicks using the XML onClick within Fragments
...utton) view.findViewById(R.id.loginButton);
loginButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View v) {
onLoginClicked(v);
}
});
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How do I use the CONCAT function in SQL Server 2008 R2?
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CONCAT is new to SQL Server 2012. The link you gave makes this clear, it is not a function on Previous Versions, including 2008 R2.
That it is part of SQL Server 2012 can be seen in the document tree:
SQL Server 2012
Product Docume...
Preview an image before it is uploaded
...input) {
if (input.files && input.files[0]) {
var reader = new FileReader();
reader.onload = function(e) {
$('#blah').attr('src', e.target.result);
}
reader.readAsDataURL(input.files[0]); // convert to base64 string
}
}
$("#imgInp").change(fun...
How To Create Table with Identity Column
...l = function(e) {
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
...
Is there a concurrent List in Java's JDK?
...contents using the enhanced for syntax:
Queue<String> globalQueue = new ConcurrentLinkedQueue<String>();
//Multiple threads can safely call globalQueue.add()...
for (String href : globalQueue) {
//do something with href
}
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Is there a way to @Autowire a bean that requires constructor arguments?
...thingInjected;
public MyBean getMyBean(/* params */) {
return new MyBeanImpl(/* params */);
}
private class MyBeanImpl implements MyBean {
public MyBeanImpl(/* params */) {
// let's do whatever one has to
}
}
}
@Component
public class MyConsumer...
Automapper: Update property values without creating a new object
...apper to update the properties values of another object without creating a new one?
3 Answers
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