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How can I select multiple columns from a subquery (in SQL Server) that should have one record (selec
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Here's generally how to select multiple columns from a subquery:
SELECT
A.SalesOrderID,
A.OrderDate,
SQ.Max_Foo,
SQ.Max_Foo2
FROM
A
LEFT OUTER JOIN
(
SELECT
B.SalesOrderID,
MAX(B.Fo...
How do you return a JSON object from a Java Servlet
...haracterEncoding("UTF-8");
response.getWriter().write(json);
}
That's all.
See also:
How to use Servlets and Ajax?
What is the correct JSON content type?
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How to print a float with 2 decimal places in Java?
...lNumber));
Another one is to construct it using the #.## format.
I find all formatting options less readable than calling the formatting methods, but that's a matter of preference.
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improv...
Printing 1 to 1000 without loop or conditionals
...hings I have learned from experience over the years: use '\n' unless you really want to flush, use ++i unless you actually need the former value of i, pass by const reference unless you have a good reason not to... When developers stop thinking about these (or never even start), they will, sooner or...
How to show all parents and subclasses of a class in IntelliJ IDEA?
...r is over a class variable, I can do Ctrl + T to have a popup that shows all its parents and subclasses. What is the equivalent in IntelliJ?
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How do I make a text input non-editable?
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or readonly="readonly" if you like it being all XML-y, see Stephan Muller's example below :)
– Algy Taylor
Feb 19 '14 at 11:18
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Should I choose ActivePerl or Strawberry Perl for Windows? [duplicate]
I'm totally new to Perl, but I'd like to try it out. I read about two rival distributions available for Windows platform (I guess there's just Perl on other OSes :).
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jQuery .val change doesn't change input value
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This is totally correct, by using setAttribute or jQuery's attr you will also affect the DOM element's value: jsfiddle.net/a8SxF/1
– TheZ
Aug 8 '12 at 21:58
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gcc warning" 'will be initialized after'
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The order of initialization doesn’t matter. All fields are initialized in the order of their definition in their class/struct. But if the order in initialization list is different gcc/g++ generate this warning. Only change the initialization order to avoid this warnin...
How to declare and add items to an array in Python?
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Arrays (called list in python) use the [] notation. {} is for dict (also called hash tables, associated arrays, etc in other languages) so you won't have 'append' for a dict.
If you actually want an array (list), use:
array = []
ar...