大约有 46,000 项符合查询结果（耗时：0.0693秒） [XML]
How to migrate back from initial migration in Django 1.7?
I created a new app with some models and now I noticed that some of the models are poorly thought out. As I haven't committed the code the sensible thing would be to migrate the database to last good state and redo the migration with better models. In this case the last good state is database where ...
How to get the error message from the error code returned by GetLastError()?
After a Windows API call, how can I get the last error message in a textual form?
11 Answers
...
Bash/sh - difference between && and ;
I normally use ; to combine more than one command in a line, but some people prefer && . Is there any difference? For example, cd ~; cd - and cd ~ && cd - seems to make the same thing. What version is more portable, e.g. will be supported by a bash-subset like Android's shell ...
Java JTable setting Column Width
I have a JTable in which I set the column size as follows:
9 Answers
9
...
What's the difference between @Secured and @PreAuthorize in spring security 3?
It's not clear for me what is the difference in spring security between :
5 Answers
5...
Using a Single Row configuration table in SQL Server database. Bad idea?
In developing a shopping cart application I've found that I needed to save settings and configurations based on the administrator's preferences and requirements. This information can be anything from company information, Shipping account IDs, PayPal API keys, notification preferences, etc.
...
Python: try statement in a single line
Is there a way in python to turn a try/except into a single line?
12 Answers
12
...
Can you have if-then-else logic in SQL? [duplicate]
I need to do select data from a table based on some kind of priority like so:
7 Answers
...
Random number generation in C++11: how to generate, how does it work? [closed]
I recently came across new way to generate random numbers in C++11, but couldn't digest the papers that I read about it (what is that engine , maths term like distribution , "where all integers produced are equally likely ").
...
Python: how to print range a-z?
1. Print a-n: a b c d e f g h i j k l m n
17 Answers
17
...