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Reference alias (calculated in SELECT) in WHERE clause
... - CreditTotal) AS BalanceDue
FROM Invoices
) AS x
WHERE BalanceDue > 0;
Or just repeat the expression:
SELECT (InvoiceTotal - PaymentTotal - CreditTotal) AS BalanceDue
FROM Invoices
WHERE (InvoiceTotal - PaymentTotal - CreditTotal) > 0;
I prefer the latter. If the expression is extre...
Select statement to find duplicates on certain fields
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840
To get the list of fields for which there are multiple records, you can use..
select field1,fiel...
Difference between final static and static final
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edited Jul 20 '16 at 10:31
NatNgs
7981212 silver badges2424 bronze badges
answered Jun 27 ...
Sending a message to nil in Objective-C
As a Java developer who is reading Apple's Objective-C 2.0 documentation: I wonder what " sending a message to nil " means - let alone how it is actually useful. Taking an excerpt from the documentation:
...
How do I remove a property from a JavaScript object?
...
answered Oct 16 '08 at 10:58
nickfnickf
482k187187 gold badges607607 silver badges703703 bronze badges
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Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with
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1077
The problem is still your pg_hba.conf file (/etc/postgresql/9.1/main/pg_hba.conf*).
This li...
TypeScript sorting an array
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answered Feb 10 '14 at 21:08
SLaksSLaks
770k161161 gold badges17711771 silver badges18631863 bronze badges
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What is the default initialization of an array in Java?
...hing that holds an object) that is null.
For int/short/byte/long that is a 0.
For float/double that is a 0.0
For booleans that is a false.
For char that is the null character '\u0000' (whose decimal equivalent is 0).
When you create an array of something, all entries are also zeroed. So your arra...
jQuery Plugin: Adding Callback functionality
... var options = $.extend({
callback: function() {}
}, arguments[0] || {});
// call the callback and apply the scope:
options.callback.call(this);
};
Use it like this:
$('.elem').myPlugin({
callback: function() {
// some action
}
});
...
What does this gdb output mean?
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203
That is a confirmed bug of the iOS SDK 5 / Simulator - happens as soon as the simulator tries t...