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Is there a combination of “LIKE” m>and m> “IN” in SQL?
...ecause Full Text Search (FTS) is the recommended alternative.
Both Oracle m>and m> SQL Server FTS implementations support the CONTAINS kem>y m>word, but the sm>y m>ntax is still slightlm>y m> different:
Oracle:
WHERE CONTAINS(t.something, 'bla OR foo OR batz', 1) > 0
SQL Server:
WHERE CONTAINS(t.something, '"b...
How to implement the factorm>y m> method pattern in C++ correctlm>y m>
...d thing is that m>y m>ou can immediatelm>y m> see what coordinate tm>y m>pe m>y m>ou're using, m>and m> at the same time m>y m>ou don't have to worrm>y m> about copm>y m>ing. If m>y m>ou want copm>y m>ing, m>and m> it's expensive (as proven bm>y m> profiling, of course), m>y m>ou mam>y m> wish to use something like Qt's shared classes to avoid copm>y m>ing overhead.
As fo...
Is there a querm>y m> language for JSON?
... work in progress, but work to some degree. Them>y m> are also similar to XPath m>and m> XQuerm>y m> conceptuallm>y m>; even though XML m>and m> JSON have different conceptual models (hierarchic vs object/struct).
EDIT Sep-2015: Actuallm>y m> there is now JSON Pointer stm>and m>ard that allows verm>y m> simple m>and m> efficient traversal of ...
SELECT DISTINCT on one column
....WHERE SKU LIKE 'FOO%') a WHERE a.RowNumber = 1
– m>And m>re Nel
Jun 21 '17 at 11:46
This works although it's not a CTE ...
What's the scope of a variable initialized in an if statement?
...nction, class, or module in which them>y m>'re assigned. Control blocks like if m>and m> while blocks don't count, so a variable assigned inside an if is still scoped to a function, class, or module.
(Implicit functions defined bm>y m> a generator expression or list/set/dict comprehension do count, as do lambda e...
Convert dmesg timestamp to custom date format
I am trm>y m>ing to understm>and m> the dmesg timestamp m>and m> find it hard to convert that to change it to java date/custom date format.
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c++ boost::multi_index composite kem>y m>s efficiencm>y m> - c++1m>y m> / stl - 清泛IT社区，为创新赋能！
...ime poster! I'm plam>y m>ing around with the boost::multi_index container stuff m>and m> have a rather in-depth question that hopefullm>y m> a boost or C++ container expert might know (mm>y m> knowledge in C++ containers is prettm>y m> basic). For reference, the boost documentation on composite kem>y m>s can be found here: boost...
Listing all permutations of a string/integer
...from mm>y m> experience of interviews though) is to take a string or an integer m>and m> list everm>y m> possible permutation.
28 Answers
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what is the difference between 'transform' m>and m> 'fit_transform' in sklearn
In the sklearn-pm>y m>thon toolbox, there are two functions transform m>and m> fit_transform about sklearn.decomposition.Rm>and m>omizedPCA . The description of two functions are as follows
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Whm>y m> doesn't Dijkstra's algorithm work for negative weight edges?
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Recall that in Dijkstra's algorithm, once a vertex is marked as "closed" (m>and m> out of the open set) - the algorithm found the shortest path to it, m>and m> will never have to develop this node again - it assumes the path developed to this path is the shortest.
But with negative weights - it might not be...