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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Sep 18 '08 at 21:36
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Using “super” in C++
... :(
– Steve Vermeulen
Sep 12 '12 at 20:33
so use super1 for Base and super2 in Derived? The DerivedAgain can use both...
Correct way to populate an Array with a Range in Ruby
...s [*1..10].
– Hauleth
May 18 '13 at 20:36
2
what is the fastest way??
– And...
Purpose of Activator.CreateInstance with example?
...ncyObject";).
– Scott
Jun 17 '13 at 20:14
1
You forgot to add the Unwrap(). You can also put null...
How to convert index of a pandas dataframe into a column?
...ke:
>>> df
val
tick tag obs
2016-02-26 C 2 0.0139
2016-02-27 A 2 0.5577
2016-02-28 C 6 0.0303
and you want to convert the 1st (tick) and 3rd (obs) levels in the index into columns, you would do:
>>> df.reset_index(level=['tick...
C/C++ maximum stack size of program
... recursive function calls can go upto 10000 with each call taking upto say 20 bytes. So is it feasible means is there a possibility of stackoverflow?
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How to delete and replace last line in the terminal using bash?
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answered Sep 20 '13 at 12:04
Um.Um.
22322 silver badges66 bronze badges
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Difference between string and text in rails?
... I think a better rule of thumb is to always use :text. See depesz.com/2010/03/02/charx-vs-varcharx-vs-varchar-vs-text
– Reed G. Law
Aug 31 '12 at 1:46
75
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Can “this” ever be null in Java?
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edited Dec 4 '15 at 15:20
user3071284
6,20166 gold badges3434 silver badges4747 bronze badges
answere...
Rendering HTML inside textarea
...lt;/div>
jsFiddle
div.editable {
width: 300px;
height: 200px;
border: 1px solid #ccc;
padding: 5px;
}
strong {
font-weight: bold;
}
<div contenteditable="true">This is the first line.<br>
See, how the text fits here, also if<br>there is a <...