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Does Redis persist data?
I understand that Redis serves all data from memory, but does it persist as well across server reboot so that when the server reboots it reads into memory all the data from disk. Or is it always a blank store which is only to store data while apps are running with no persistence?
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Visual Studio 2010 annoyingly opens documents in wrong MDI pane
Visual Studio's MDI is currently causing me a lot of frustration. Here is my basic layout:
5 Answers
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How does the ThreadStatic attribute work?
How does [ThreadStatic] attribute work? I assumed that the compiler would emit some IL to stuff/retrieve the value in the TLS, but looking at a disassembly it doesn't seem to do it at that level.
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What is a git topic branch?
What is a git topic branch? Does it differ from an ordinary branch in some way? Are there any branches that are not topic branches?
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Should I use static_cast or reinterpret_cast when casting a void* to whatever
Both static_cast and reinterpret_cast seem to work fine for casting void* to another pointer type. Is there a good reason to favor one over the other?
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Using a bitmask in C#
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The traditional way to do this is to use the Flags attribute on an enum:
[Flags]
public enum Names
{
None = 0,
Susan = 1,
Bob = 2,
Karen = 4
}
Then you'd check for a particular name as follows:
Names names = Names.Susan | Names.Bob;
// evaluates to true
bool susanIsIncluded...
How to access a preexisting collection with Mongoose?
...s in a database test . I can interact with this collection easily through MongoDB's interactive shell; however, when I try to get the collection through Mongoose in an express.js application I get an empty array.
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RelativeLayout is taking fullscreen for wrap_content
Why does FOOBARZ get layed out all the way at the bottom when no elements are layout_height="fill_parent" in other words, all elements are wrap_content for height?
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How to return result of a SELECT inside a function in PostgreSQL?
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Use RETURN QUERY:
CREATE OR REPLACE FUNCTION word_frequency(_max_tokens int)
RETURNS TABLE (txt text -- also visible as OUT parameter inside function
, cnt bigint
, ratio bigint) AS
$func$
BEGIN
RETURN QUERY
SELECT t.txt
, count(*) AS...
How does Django's Meta class work?
I am using Django which allows people to add extra parameters to a class by using class Meta .
6 Answers
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