大约有 40,000 项符合查询结果(耗时:0.0372秒) [XML]
What is your naming convention for stored procedures? [closed]
...mple, what if the sproc queries information from both the Customer and the Orders table?
– DOK
Oct 26 '08 at 18:27
2
...
What are the most common naming conventions in C?
...ING_ID_PREFIX.
Struct names and typedef's in camelcase: GtkWidget, TrackingOrder.
Functions that operate on structs: classic C style: gtk_widget_show(), tracking_order_process().
Pointers: nothing fancy here:
GtkWidget *foo, TrackingOrder *bar.
Global variables: just don't use global variables. They...
Return a value if no rows are found in Microsoft tSQL
...returns 2 rows, is it guaranteed the rows will be returned in the expected order?
– Sarsaparilla
Jan 22 '15 at 18:26
A...
node.js global variables?
...ty. If your program promiscuously uses global variables, it means that in order to understand the code, I must understand the dynamic runtime state of the entire app. This is why programmers are leery of globals. I'm sure there's dozens of ways to use them effectively, but we've mostly just seen ...
How to take the first N items from a generator or list in Python? [duplicate]
...r the largest N items, assuming that your sequence is sorted in descending order. (Your LINQ example seems to assume this as well.)
If you want the largest, and it isn't sorted, the most obvious solution is to sort it first:
l = list(sequence)
l.sort(reverse=True)
top5 = l[:5]
For a more perform...
Convert Django Model object to dict with all of the fields intact
...solution was gorgeous!
I would add, though, a condition for datefields in order to make it JSON friendly.
Bonus Round
If you want a django model that has a better python command-line display, have your models child class the following:
from django.db import models
from django.db.models.fields.re...
How can I efficiently select a Standard Library container in C++11?
...iative container
If you need to have the elements sorted, then you need an ordered associative container
Otherwise, jump to the question 2.
Question 1.1: Ordered ?
If you do not need a specific order, use an unordered_ container, otherwise use its traditional ordered counterpart.
Question 1.2:...
How to check that an element is in a std::set?
...
std::set is typically implemented with an ordered tree structure, so count() and find() will both have O(logn). Neither will iterate over all elements in the set.
– Alan
Nov 9 '09 at 16:41
...
How to connect android emulator to the internet
...
@Anzeo: and how do you change the order on Windows?
– Martin
Apr 18 '11 at 9:02
1
...
Checking for empty queryset in Django
...ist before the check is made. In my case execution time went down by three orders.
share
|
improve this answer
|
follow
|
...
