case-sensitive

问题 Nearly every kind of lookup in Django has a case-insensitive version, EXCEPT in, it appears. This is a problem because sometimes I need to do a lookup where I am certain the case will be incorrect. Products.objects.filter(code__in=[user_entered_data_as_list]) Is there anything I can do to deal with this? Have people come up with a hack to work around this issue? 回答1: I worked around this by making the MySQL database itself case-insensitive. I doubt that the people at Django are interested in

问题 I'm trying to familiarize myself with Postgres (9.2) after a fair bit of MySQL (5.1) usage, since I've been bitten by a handful of MySQL's gotchas. However, in my first five minutes with Postgres I ran into one of its gotchas, which I'm sure hits everyone: By default, PostgreSQL converts everything that isn't quoted to lower case. This isn't too big of a deal to me, since there are a couple of obvious workarounds: Encapsulate everything in quotes. Allow everything to be named in a lower case

问题 I have a lot of custom stuff in my .emacs file: fonts, colors, window sizing, key bindings, etc. All of it works. Then at the end, I just added a: (setq case-fold-search nil) . It's a variable that when set to nil is supposed to make search case-sensitive in all emacs modes. It doesn't for me. Setting case-fold-search to nil in an individual buffer works, but when I set it in .emacs , it doesn't work. Is there a reason why a setq declaration in a .emacs may not work sometimes? How should I

问题 I have a database and I am trying to execute the following query: SELECT COUNT(*) FROM [Resource] WHERE Name LIKE 'ChinaApp%' SELECT COUNT(*) FROM [Resource] WHERE Name LIKE 'Chinaapp%' This is returning 2 different counts: The first thing that came to my mind is to check the case sensitivity. I checked the collation on the server level, the database level and the column level: Server level : Latin1_General_ CI _AS SELECT SERVERPROPERTY('COLLATION') Database level : Danish_Norwegian_ CI _AS

问题 I wrote select * from mytable In my ASP.net app on Windows it works fine. On Linux it complains I used mytable instead of MyTable . How do I set MySQL on Windows to be case sensitive or set Linux to be case insensitive when dealing with table names? 回答1: See 8.2.2. Identifier Case Sensitivity in the mySQL manual. Short version: Use the lower_case_table_names system variable to achieve case insensitivity on Linux/Unix. 回答2: There is a setting for this. See this link: http://www.parkroad.co.za

问题 When navigating a file hierarchy under Cygwin, pressing tab after cd + a few characters will replace those few characters by the name of a directory whose name starts by the same characters, if such a directory is present in the current folder. However, the test seems to be case-sensitive. How to deactivate the case-sensitivity ? 回答1: Try: set completion-ignore-case On (This is for bash, which I'm pretty sure cygwin uses.) EDIT: This change will only take effect for the duration of your

问题 How does CMake treat variable names? Are they case sensitive? If I use FindFoo.cmake with find_package(Foo) can I use FOO_FOUND , Foo_FOUND and foo_FOUND ? 回答1: CMake variables are case sensitive. See documentation. As a side note, commands are case insensitive, and their arguments are case sensitive. See wiki. Keywords like STATUS are case sensitive because they are arguments. Example: message(STATUS foo) MESSAGE(status foo) outputs: foo statusfoo the second marked as a warning (default

问题 I've noticed that when you bind keys in tkinter (python3.2 winxp), the binds are case sensitive with the letter characters. In other words binding <Control-o> does not work if you press Control+o if caps lock is active. Does it mean I need to write two bindings for each case insensitive key combination with letter characters? Or is there any way to solve this? Thanks for help :) 回答1: Yes, you have to make two bindings. 回答2: You must bind twice in your case but you don't need to think about it

问题 I have used the statfs(2) system call to get many characteristics of a Mac OS X filesystem, but it doesn't tell me if the filesystem is case-sensitive or not. I need this information as the application I am developing will be moving many files around and I want to detect potential loss of data due to files being moved from a case- sensitive filesystem to a case- insensitive filesystem. Can anyone suggest a way of detecting this? 回答1: If you're already using stat(2) , then you can easily use

问题 Does anyone know how I can make an IN clause behave in a case sensitive manner? I have seen that COLLATE can be used with LIKE for string searching but I don't know if or how it can be used with IN. For example I want to do something like SELECT * FROM pages_table WHERE topic IN ('Food','NightLife','Drinks') And I want it to return pages where the topic is 'Food' but not those where the topic is 'food' which is currently what happens on this query. Thanks. 回答1: You can actually use it as you