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Entity Framework: One Database, Multiple DbContexts. Is this a bad idea? [closed]
... @PiotrKwiatek Not sure if this changed between your comment and now, but Enable-Migrations -ContextTypeName MyContext -MigrationsDirectory Migrations\MyContextMigrations works now.
– Zack
Aug 10 '15 at 15:30
...
Python assigning multiple variables to same value? list behavior
...t element of a to 1, the first elements of b and c are 1.
If you want to know if two names are naming the same object, use the is operator:
>>> a=b=c=[0,3,5]
>>> a is b
True
You then ask:
what is different from this?
d=e=f=3
e=4
print('f:',f)
print('e:',e)
Here, you'r...
Creating functions in a loop
...
how do you know how to fix these things?
– alwbtc
Aug 18 '18 at 15:49
3
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[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
...h (...)
{
return E_OUTOFMEMORY;
}
// The client is now responsible for freeing pbstr.
return( S_OK );
}
//...
· 时刻牢记BSTR是一个指针，而不是一个对象。尽量减少使用BSTR作为结构体或类的成员变量。如果必须使用，一定要...
Pandas percentage of total with groupby
...r
19 s ± 77.1 ms per loop
(mean ± std. dev. of 7 runs, 1 loop each)
So now we see x10 speed up on large, high cardinality datasets.
Be sure to UV these three answers if you UV this one!!
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mysql_config not found when installing mysqldb python interface
...oo on openSUSE, where "libmysqlclient-dev" becomes "libmysqlclient-devel". Now the pip package installs fine. Thanks.
– pbarill
Nov 30 '13 at 4:14
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Will the base class constructor be automatically called?
...tion and calls. In your Base class with a non-default constructor you must now either call that constructor explicitly from the derived class or add a default constructor explicitly in the base class.
Let's test this.....
// THIS WORKS!!!
class MyBaseClass0
{
// no default constructor - create...
New features in java 7
...new features in java 7 is going to be implemented?
And what are they doing now?
8 Answers
...
Make a link open a new window (not tab) [duplicate]
...is not a matter of year or browser, most modern browsers open in a new tab nowadays. You need a javascript solution like Ievgen's for this.
– Christoph
Sep 15 '15 at 14:27
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Transposing a 2D-array in JavaScript
... can just do const transpose = apply(zip)
– Guy Who Knows Stuff
Apr 26 '18 at 5:09
1
Why would th...