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Get exit code of a background process
I have a command CMD called from my main bourne shell script that takes forever.
12 Answers
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Random shuffling of an array
I need to randomly shuffle the following Array:
29 Answers
29
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How do I fix "The expression of type List needs unchecked conversion…'?
... Thanks -- that's an interesting insight about the "warranty" and the invisible cast done by the compiler versus a cast done explicitly in my own code.
– user46277
Dec 16 '08 at 5:30
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What are the pros and cons of performing calculations in sql vs. in your application
...ed to access/aggregate a lot of data, doing it at the db server will save bandwidth, and disk io if the aggregates can be done inside indexes)
convenience (sql is not the best language for complex work - especially not great for procedural work, but very good for set-based work; lousy error-handling...
Is it possible to Pivot data using LINQ?
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GroupBy in Linq does not work the same as SQL. In SQL, you get the key and aggregates (row/column shape). In Linq, you get the key and any elements as children of the key (hierarchical shape). To pivot, you must project the hierarchy back into a row/column form of your choosing.
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How can you do paging with NHibernate?
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From NHibernate 3 and above, you can use QueryOver<T>:
var pageRecords = nhSession.QueryOver<TEntity>()
.Skip((PageNumber - 1) * PageSize)
.Take(PageSize)
.List();
You may also want to explici...
How to join two generators in Python?
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See @andrew-pate anser for itertools.chain.from_iterable() reference to return a types.GeneratorType instance.
– gkedge
Sep 9 at 13:13
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Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
... ngx.exit(ngx.HTTP_SERVICE_UNAVAILABLE)
end
if res == nil and flags == nil and err == nil then
ngx.exit(ngx.HTTP_NOT_FOUND)
end
ngx.print(res)
elseif method == "PUT" then
local value = ngx.req.get_body_data()
local expire = ngx.var.arg_expire or 86400...
How do I create a unique ID in Java? [duplicate]
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Create a UUID.
String uniqueID = UUID.randomUUID().toString();
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Vertical Text Direction
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@CrystalMiller and BTW, w3schools can be a good helper, but it is not the source/original documentation (so it can miss some things), the "official" is w3.org, or the closest, more human-readable, to it is mozilla's developer network - "MDN...