大约有 10,000 项符合查询结果（耗时：0.0199秒） [XML]
List all sequences in a Postgres db 8.1 with SQL
... OWNED BY clause of the ALTER SEQUENCE commmand
e.g.
ALTER SEQUENCE foo_id OWNED by foo_schema.foo_table
to set it to be linked to the table foo_table
or
ALTER SEQUENCE foo_id OWNED by NONE
to break the connection between the sequence and any table
The information about this relatio...
What vim plugins are available for Eclipse? [closed]
I have found three and would like to know if there are others and what their advantages or disadvantages might be:
4 Answer...
How do I rename my Git 'master' branch to 'release'?
We would like to enforce a new policy for our projects that the master branch now be called the release branch to ensure it is more clear as to how the branch should be used. Naturally, we will have develop and release candidate branches as well.
...
How to pass an object into a state using UI-router?
...hristopherthielen: Yes, this should be working now in 0.2.13.
.state('foo', { url: '/foo/:param1?param2', params: { param3:
null } // null is the default value });
$state.go('foo', { param1: 'bar', param2: 'baz', param3: { id: 35,
name: 'what' } });
$stateParams in 'foo' is n...
Query for array elements inside JSON type
... for its elements:
WITH reports(data) AS (
VALUES ('{"objects":[{"src":"foo.png"}, {"src":"bar.png"}]
, "background":"background.png"}'::json)
)
SELECT *
FROM reports r, json_array_elements(r.data#>'{objects}') obj
WHERE obj->>'src' = 'foo.png';
The CTE (WITH query) jus...
In C, do braces act as a stack frame?
...ct outside the inner scope (but within the containing function), ie:
void foo() {
int c[100];
int *p;
{
int d[200];
p = d;
}
/* Can I access p[0] here? */
return;
}
(In other words: is the compiler allowed to deallocate d, even if in practice most don't?).
The ...
Django optional url parameters
...same view.
urlpatterns = patterns('',
url(r'^project_config/$', views.foo),
url(r'^project_config/(?P<product>\w+)/$', views.foo),
url(r'^project_config/(?P<product>\w+)/(?P<project_id>\w+)/$', views.foo),
)
Keep in mind that in your view you'll also need to set a de...
How to make good reproducible pandas examples
...,3,4,2,1,3,1]})
assert df.equals(eval(dput(df)))
du = pd.get_dummies(df.a,"foo")
assert du.equals(eval(dput(du)))
di = df
di.index = list('abcdefgh')
assert di.equals(eval(dput(di)))
Note that this produces a much more verbose output than DataFrame.to_dict, e.g.,
pd.DataFrame({
'foo_1':pd.Seri...
Do regular expressions from the re module support word boundaries (\b)?
...use \b in a Python string is shorthand for a backspace character.
print("foo\bbar")
fobar
So the pattern "\btwo\b" is looking for a backspace, followed by two, followed by another backspace, which the string you're searching in (x = 'one two three') doesn't have.
To allow re.search (or compile)...