case-insensitive

问题 I'm attempting to move a SQL Server DB which is used by a C# application (+EF6) to Postgres 12 but I'm not having much luck with getting case-insensitive string comparisons working. The existing SQL Server db uses SQL_Latin1_General_CP1_CI_AS collation which means all WHERE clauses don't have to worry about case. I understand that CIText was the way to do this previously, but is now superseded by non-deterministic collations. I created such a collation; CREATE COLLATION ci (provider = icu,

问题 I know for C++ that basic comparative operators can accomplish the task if both words are either entirely lower or entirely upper case. I have an array of strings and letters can vary from lower to upper. Here is a small examle of the kind of strings I can be working with: "ABUNDANT LIFE CH" "NEW LIFE WMN MNSTRY" "NEW LIFE ASSEMBLY" I know in Java there exists the function String.compareToIgnoreCase(). Is there a C++ equivalent of this function? 回答1: I don't know of any case-insensitive

问题 I know for C++ that basic comparative operators can accomplish the task if both words are either entirely lower or entirely upper case. I have an array of strings and letters can vary from lower to upper. Here is a small examle of the kind of strings I can be working with: "ABUNDANT LIFE CH" "NEW LIFE WMN MNSTRY" "NEW LIFE ASSEMBLY" I know in Java there exists the function String.compareToIgnoreCase(). Is there a C++ equivalent of this function? 回答1: I don't know of any case-insensitive

问题 NSDictionary has objectForKey but it's case-sentive for keys. There is No function available like - (id)objectForKey:(id)aKey options:(id) options; where in options you can pass "NSCaseInsensitiveSearch" To get key's from NSDictionary which is case-insesitive one can use the following code written below. 回答1: This isn't included for a couple of reasons: NSDictionary uses hash equality, and for pretty much any good hashing algorithm, any variation in the source string results in a different

问题 I'm new to Python and could really use some help on this. I want to create a function to filter which files I want to open and which months and day specifically. That way, the users need to input which city(files) they want to analyze on which particular month or day. However, I want the user to be able to input something that is not case sensitive. For example, the user can input 'chicago'/'CHICAGO"/"ChIcAgO" and the it still give you the right output and not the error handling message. Here

问题 I'm currently creating a website in python (pyramid) which requires users to sign up and log in. The system allows for users to choose a username which can be a mixture of capital letters, lowercase letters, and numbers. The problem arises when making sure that two users don't accidentally share the same username, i.e. in my system 'randomUser' should be the same as 'RandomUser' or 'randomuser'. Unfortunately (in this case) because Mongo stores strings as case sensitive, there could

问题 I have a postgres sql query in Laravel : $_query = Article::join('users', 'articles.user_id', '=', 'users.id') ->select('users.*','articles.*'); if( array_key_exists('title', $parameters) && $parameters['title'] != '' ) $_query->whereRaw( " LOWER(nbl_region_ref.region) like LOWER('%?%')", array( trim($parameters['region']) ) ); $result = $_query->get(); Output/Error: 'PDOException' with message 'SQLSTATE[42P18]: Indeterminate datatype: 7 ERROR: could not determine data type of parameter $2'

问题 I have looked at every article and post I could find about performing exact-match, case-insensitive queries, but upon implementation, they do not perform what I am looking for. Before you mark this question as a duplicate, please read the entire post. Given a username, I want to query my Elasticsearch database to only return a document that exactly matches the username, but is also case insensitive. I have tried specifying a lowercase analyzer for my username property and use a match query to

问题 We are revamping our existing system, which uses MYSQL DB to deal with the following type of data. transaction and order related data customers information products information We need to query on these data and pull in statistical data, and also filter, facet and segment list and KPIs. We tried ClickHouse, Druid, DGraph did a few tests on sample data to benchmark and to check which DB fits our needs. Few things I liked about Druid DB are, Druid Search Queries: Which lists down all the

问题 I see that colors in CSS properties values are commonly written in the uppercase form: .foo .bar { background-color: #A41B35; color: #FFF; } But you can also use: /* Same same */ .foo .bar { background-color: #a41b35; color: #fff; } It looks like using lowercase values does the same, and, CSS values for colors are not case-sensitive. Lots of graphic design software also use the uppercase form. And it is very common to find uppercase notations in source code, it looks like there is something