case-sensitive

问题 This question already has answers here : Why are functions and methods in PHP case-insensitive? (2 answers) Closed 3 months ago . In PHP, variable and constant names are case sensitive, while function names are not. As far as I am aware, PHP is the only language in which this happens. All other languages I have used are either totally case sensitive or totally case insensitive. Why is PHP partially case senstive? Please note, that I am not asking which names are case sensitive, but why .

问题 This question already has an answer here: How can I make SQL case sensitive string comparison on MySQL? 11 answers This has been asked on this site before but I couldn\'t find a sufficient answer. If I\'m doing a query like: Select Seller from Table where Location = \'San Jose\' How can I make it return only Sellers with Location \'San Jose\' instead of \'san jose\' or something else? 回答1: MySQL queries are not case-sensitive by default. Following is a simple query that is looking for 'value'

问题 Is SQL case sensitive. I\'ve used MySQL and SQL Server which both seem to be case in-sensitive. Is this always the case? Does the standard define case-sensitivity? 回答1: The SQL Keywords are case-insensitive ( SELECT , FROM , WHERE , etc), but are often written in all caps. However in some setups table and column names are case-sensitive. MySQL has a configuration option to enable/disable it. Usually case-sensitive table and column names are the default on Linux MySQL and case-insensitive used

问题 I\'m trying to use \"contains\" case insensitively. I tried using the solution at the following stackoverflow question, but it didn\'t work: Is there a case insensitive jQuery :contains selector? For convenience, the solution is copied here: jQuery.extend( jQuery.expr[\':\'], { Contains : \"jQuery(a).text().toUpperCase().indexOf(m[3].toUpperCase())>=0\" }); Here is the error: Error: q is not a function Source File: /js/jquery-1.4.js?ver=1.4 Line: 81 Here\'s where I\'m using it: $(\'input

问题 I have changed a few files name by de-capitalize the first letter, as in Name.jpg to name.jpg . Git does not recognize this changes and I had to delete the files and upload them again. Is there a way that Git can be case-sensitive when checking for changes in file names? I have not made any changes to the file itself. 回答1: You can use git mv: git mv -f OldFileNameCase newfilenamecase 回答2: Git has a configuration setting that tells it whether to be case sensitive or insensitive: core

问题 I have a function that returns five characters with mixed case. If I do a query on this string it will return the value regardless of case. How can I make MySQL string queries case sensitive? 回答1: http://dev.mysql.com/doc/refman/5.0/en/case-sensitivity.html The default character set and collation are latin1 and latin1_swedish_ci, so nonbinary string comparisons are case insensitive by default. This means that if you search with col_name LIKE 'a%', you get all column values that start with A

问题 The default behaviour of LIKE and the other comparison operators, = etc is case-sensitive. Is it possible make them case-insensitive? 回答1: Since 10gR2, Oracle allows to fine-tune the behaviour of string comparisons by setting the NLS_COMP and NLS_SORT session parameters: SQL> SET HEADING OFF SQL> SELECT * 2 FROM NLS_SESSION_PARAMETERS 3 WHERE PARAMETER IN ('NLS_COMP', 'NLS_SORT'); NLS_SORT BINARY NLS_COMP BINARY SQL> SQL> SELECT CASE WHEN 'abc'='ABC' THEN 1 ELSE 0 END AS GOT_MATCH 2 FROM DUAL

问题 I am trying to rename a file to have different capitalization from what it had before: git mv src/collision/b2AABB.js src/collision/B2AABB.js fatal: destination exists, source=src/collision/b2AABB.js, destination=src/collision/B2AABB.js As you can see, git throws a fit over this. I tried renaming using just the plain old mv command as well but git doesn\'t pick up the rename (as a rename or as a new untracked file). How can I change a file to have a different capitalization of the same name?

问题 Are table names in MySQL case sensitive? On my Windows dev machine the code I have is able to query my tables which appear to be all lowercase. When I deploy to the test server in our datacenter the table names appear to start with an uppercase letter. The servers we use are all on Ubuntu. 回答1: In General: Database and table names are not case sensitive in Windows, and case sensitive in most varieties of Unix. In MySQL, databases correspond to directories within the data directory. Each table

问题 I have a db table say, persons in Postgres handed down by another team that has a column name say, \"first_Name\" . Now am trying to use PG commander to query this table on this column-name. select * from persons where first_Name=\"xyz\"; And it just returns ERROR: column \"first_Name\" does not exist Not sure if I am doing something silly or is there a workaround to this problem that I am missing? 回答1: All identifiers (including column names) that are not double-quoted are folded to lower