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Is python's sorted() function guaranteed to be stable?
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Yes, the intention of the manual is indeed to guarantee that sorted is stable and indeed that ...
What is the maximum number of characters that nvarchar(MAX) will hold?
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Max. capacity is 2 gigabytes of space - so you're looking at just over 1 billion 2-byte charac...
How to change identity column values programmatically?
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How to load local script files as fallback in cases where CDN are blocked/unavailable? [duplicate]
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Explanation of JSONB introduced by PostgreSQL
...ed in its spec).
F.ex. these are valid JSON representations: null, true, [1,false,"string",{"foo":"bar"}], {"foo":"bar","baz":[null]} - hstore is just a little subset compared to what JSON is capable (but if you only need this subset, it's fine).
The only difference between json & jsonb is the...
Circle line-segment collision detection algorithm?
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// either solution may be on or off the ray so need to test both
// t1 is always the smaller value, because BOTH discriminant and
// a are nonnegative.
float t1 = (-b - discriminant)/(2*a);
float t2 = (-b + discriminant)/(2*a);
// 3x HIT cases:
// -o-> --|--&...
Why doesn't ruby support method overloading?
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Method overloading can be achieved by declaring two methods with the same name and different s...
App Inventor 2 列表代码块 · App Inventor 2 中文网
...表，子列表的成员本身并不是列表的成员。
例如列表 [1,2,[3,4]] 的成员为1、2，列表[3 4]， 3 和 4 本身不是列表的成员。
求列表长度
返回列表中的项目数。
列表是否为空？
如果列表没有项目，则返回 真， 否则，返回 假...
Bogus foreign key constraint fail
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Two possibilities:
There is a table within another schema ("database" in mysql terminology) ...