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List of foreign keys and the tables they reference
...key is described in the columns r_owner and r_constraint_name of the table ALL_CONSTRAINTS. This will give you the info you want:
SELECT a.table_name, a.column_name, a.constraint_name, c.owner,
-- referenced pk
c.r_owner, c_pk.table_name r_table_name, c_pk.constraint_name r_pk
FROM...
How can I use “sizeof” in a preprocessor macro?
...UILD_BUG_ON.
– Petr Vepřek
Jul 12 '16 at 7:30
2
The macro does not work in GNU gcc (tested at ve...
Python decorators in classes
... Michael SpeerMichael Speer
3,52822 gold badges1616 silver badges1010 bronze badges
7
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Advantages to Using Private Static Methods
When creating a class that has internal private methods, usually to reduce code duplication, that don't require the use of any instance fields, are there performance or memory advantages to declaring the method as static?
...
Default template arguments for function templates
Why are default template arguments only allowed on class templates? Why can't we define a default type in a member function template? For example:
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(Mac) -bash: __git_ps1: command not found
...
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edited Jun 16 '14 at 21:43
MBlanc
1,6801313 silver badges3131 bronze badges
answered Oct ...
Django. Override save for model
...self._image_changed = True
# Or put whole logic in here
small = rescale_image(self.image,width=100,height=100)
self.image_small=SimpleUploadedFile(name,small_pic)
def get_image(self):
return self._image
image = property(get_image, set_image)
# this is ...
Javascript - Append HTML to container element without innerHTML
...;
font-size: 30px;
outline: none;
padding: 0 20px;
transition: all .3s;
}
button:hover {
background: rgba(7, 99, 53, 1);
color: rgba(255,255,255,1);
}
p {
font-size: 20px;
font-weight: bold;
}
<button type="button" onclick="addChild()">Append Child</button>
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ERROR: Error 1005: Can't create table (errno: 121)
...nswered Sep 27 '12 at 14:39
DorvallaDorvalla
4,02722 gold badges2121 silver badges3939 bronze badges
...
How to manually expand a special variable (ex: ~ tilde) in bash
...
Using eval is a horrible suggestion, it's really bad that it gets so many upvotes. You will run into all sorts of problems when the variable's value contains shell meta characters.
– user2719058
Aug 31 '14 at 19:47
...