case-sensitive

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: mysql case sensitive query 'm working on an PHP script that checks some values to the ones in the database. So far I thought it worked right, but I found an problem. The query isn't looking for the specific characters. So if I use this query: SELECT * FROM `facilitydb_login` WHERE facilitydb_login.`password` = 'PASS' I want the result, because the password is PASS. But if you fill in pass (lowercase) the same

问题 I have image folder names in caps. But the src is in lowercase, so this is not loading images. I can't make all the image folders lowercase, so I want to change my code to take a case insensitive path. I have a link like this: <a href="http://www.google.com"> <img id="productMainImage" src="images/Tulips.jpg" alt="image" escapeXml="false" class="product_main_image"/> </a> I want to make the image src as case insensitive; meaning I want my code to work even if src ="IMAGES/Tulips.jpg" . How to

问题 I was wondering in case of normal select operation the search is case insenesitive. So SELECT * FROM tbl WHERE name = aBc will also consider name with values ABC,abc,abC etc but in case of login function we just do SELECT * FROM tbl WHERE password = aBc will be case sensitive and only consider password with aBc value. How does this happens?I didnt found anything about this in my searches. Please care to explain. Thanx All. 回答1: I think it depends on collation of columns, default database

问题 I have this database: abcDEF ABCdef abcdef if I write: select * from MyTbl where A='ABCdef' how to get: ABCdef and how to get: abcDEF ABCdef abcdef Thanks in advance forgot to write - sqlCE 回答1: You can make your query case sensitive by making use of the COLLATE keyword. SELECT A FROM MyTbl WHERE A COLLATE Latin1_General_CS_AS = 'ABCdef' 回答2: If you have abcDEF, ABCdef, abcdef already in the database then it's already case sensitive or you have no constraint. You'd have to add a COLLATE on

问题 How do I make MySQL's SELECT DISTINCT case sensitive? create temporary table X (name varchar(50) NULL); insert into X values ('this'), ('This'); Now this query: select distinct(name) from X; Results in: this What's going on here? I'd like SELECT DISTINCT to be case sensitive. Shouldn't that be the default? 回答1: Use BINARY operator for that: SELECT DISTINCT(BINARY name) AS Name FROM X; You can also CAST it while selecting: SELECT DISTINCT (CAST(name AS CHAR CHARACTER SET utf8) COLLATE utf8_bin

问题 This question already has answers here : Closed 10 years ago . I personally do not like programming languages being case sensitive. (I know that the disadvantages of case sensitivity are now-a-days complemented by good IDEs) Still I would like to know whether there are any advantages for a programming language if it is case sensitive. Is there any reason why designers of many popular languages chose to make them case sensitive? EDIT: duplicate of Why are many languages case sensitive? EDIT:

问题 How does Google view links with all uppercase? Is this the same for Google: example.net/LogIn.html example.net/LOGIN.html example.net/login.html I need to redesign an old site with uppercase on links, but I don't want to lose Google rank. 回答1: HTTP URL paths are case-sensitive. Live example: The following two URLs only differ in O vs. o and they lead to different pages: https://en.wikipedia.org/wiki/Stack_Overflow https://en.wikipedia.org/wiki/Stack_overflow So the first assumption of every

问题 When working with MySQL, how can I fetch all rows where the name column is all uppercase? Since equality is case insensitive, I'm not quite sure how to do this. 回答1: If your column collation is case insensitive, you can override it in your query: SELECT * FROM my_table WHERE my_column COLLATE latin1_bin = UPPER(my_column); COLLATE clause syntax. 回答2: SELECT * FROM my_table REGEXP '^[[:upper:]]+$'; 回答3: SELECT * FROM table where binary your_field REGEXP '^[[:upper:]]+$' Similarly: SELECT *

问题 parent.rb class Parent include Mongoid::Document field :name, type: String field :hobby, type: String field :born, type: Date has_many :children accepts_nested_attributes_for :children def self.search(search) if search any_of({name: search}, {hobby: search}) end end end child.rb: class Child include Mongoid::Document field :name, type: String field :hobby, type: String field :born, type: Date belongs_to :parent end parents_controller.rb class ParentsController < ApplicationController before

问题 Since I'm using a macro which seems to work if the given path is case unequal to the local path on the drive I first need to validate wether the path is case-wise existing or not. Unfortunately (in my case) Directory.Exists() is not case sensitive. So I tried FindFirstFileEx with dwAdditionalAttributes set to 1 which stands for FIND_FIRST_EX_CASE_SENSITIVE. However it seems not work for me. My local path is C:\Dir1\Dir2\Dir3 . The path I compare is C:\dir1\Dir2\Dir3 . Unfortunately I always