大约有 47,000 项符合查询结果（耗时：0.0683秒） [XML]
MongoDB and “joins” [duplicate]
....mongodb.org/master/reference/operator/aggregation/lookup/#pipe._S_lookup
From the docs:
{
$lookup:
{
from: <collection to join>,
localField: <field from the input documents>,
foreignField: <field from the documents of the "from" collection>,
a...
How do I import an SQL file using the command line in MySQL?
I have a .sql file with an export from phpMyAdmin . I want to import it into a different server using the command line.
...
Tying in to Django Admin's Model History
...
When a user makes a change, add to the log like this (stolen shamelessly from contrib/admin/options.py:
from django.contrib.admin.models import LogEntry, ADDITION
LogEntry.objects.log_action(
user_id = request.user.pk,
content_type_id = ContentType.objects.get_for_model(object).p...
Best design for a changelog / auditing database table? [closed]
...
In the project I'm working on, audit log also started from the very minimalistic design, like the one you described:
event ID
event date/time
event type
user ID
description
The idea was the same: to keep things simple.
However, it quickly became obvious that this minimalist...
Returning JSON from PHP to JavaScript?
... This 'answer' is not complete and rather un-useful. See the answer from aesede for more complete information.
– Funk Doc
May 30 '19 at 16:22
...
How can I install pip on Windows?
...wealth of libraries accessible to everyone. Newbies are no longer excluded from using community libraries by the prohibitive difficulty of setup. In shipping with a package manager, Python joins Ruby, Node.js, Haskell, Perl, Go—almost every other contemporary language with a majority open-source c...
Get value from NSTextField
...eTextField intValue];
There are many other methods for getting the value from a control. Have a look at the NSControl reference for more info, under the "Getting and Setting the Control’s Value" section.
Here's a list:
doubleValue
floatValue
intValue
integerValue
objectValue
stringValue
attri...
urllib2.HTTPError: HTTP Error 403: Forbidden
...naContent/live_watch/get_quote/getHistoricalData.jsp?symbol=JPASSOCIAT&fromDate=1-JAN-2012&toDate=1-AUG-2012&datePeriod=unselected&hiddDwnld=true"
hdr = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11',
'...
What is the length of the access_token in Facebook OAuth2?
...
It's fitting that the definitive answer from Facebook is we're going to change it later.
– Dave Cohen
Jul 4 '13 at 14:00
6
...
Java: difference between strong/soft/weak/phantom reference
...is useful only to know exactly when an object has been effectively removed from memory: normally they are used to fix weird finalize() revival/resurrection behavior, since they actually do not return the object itself but only help in keeping track of their memory presence.
Weak Reference Objects a...