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Reference alias (calculated in SELECT) in WHERE clause
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You can't reference an alias except in ORDER BY because SELECT is the second last clause that's evaluated. Two workarounds:
SELECT BalanceDue FROM (
SELECT (InvoiceTotal - PaymentTotal - CreditTotal) AS BalanceDue
FROM Invoices
) AS x
WHERE BalanceDue > 0;...
Vim Configure Line Number Coloring
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In order to get the accepted answer to work in my .vimrc I had to follow your advice and add it to the bottom. Can you explain why it has to be at the bottom?
– hidden-username
Oct 11 '15 ...
Sass or Compass without ruby?
...f (sass & compass) IS written in Ruby. So you'll definitely need it in order to run it.
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Running Bash commands in Python
...oggles my mind that I had to post a new answer to such a basic question in order to show how to run the command from the question idiomatically. Your answer is long but I don't see such example. Unrelated: avoid cargo-culting. If check_call() works in your case, use it. I had to fix a code that used...
How to create a new database after initally installing oracle database 11g Express Edition?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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When to use a Content Provider
...e 5 tables in your database, but you need to join a few of them in certain orders before using them. And make a content URI for each of these joins. You could then each use these URIs as a table :)
I suggest you go ahead with Content Provider, you'll be amazed to see how powerful it is.
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How to make Eclipse behave well in the Windows 7 taskbar?
...server/jvm.dll
You need set the compatibility to Windows Vista as well in order for it to work.
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Can modules have properties the same way that objects can?
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I would do this in order to properly inherit all the attributes of a module, and be correctly identified by isinstance()
import types
class MyModule(types.ModuleType):
@property
def y(self):
return 5
>>> a=MyModule(...
NOT IN vs NOT EXISTS
...ikely to be the ones you want anyway.
When neither Products.ProductID or [Order Details].ProductID allow NULLs the NOT IN will be treated identically to the following query.
SELECT ProductID,
ProductName
FROM Products p
WHERE NOT EXISTS (SELECT *
FROM [Order Details]...
How do JavaScript closures work?
...nment of function foo is a closure.
A function doesn't have to return in order to create a closure. Simply by virtue of its declaration, every function closes over its enclosing lexical environment, forming a closure.
function foo(x) {
var tmp = 3;
return function (y) {
console.l...