collation

问题 SQL Server Standard 64 Bit with collation SQL_Latin1_General_CP1_CS_AS Table plz : ort varchar(30) SQL_Latin1_General_CP1_CS_AS select ort, from plz where ort >= 'zürich' and ort <= 'zürichz' Selects this data: Zürich Zürich Mülligen Zürich 80 Without the z at the end of second zürich no data are selected which is ok. But why does it show data on case sensitive server? 回答1: When comparing strings, one of the first things that SQL Server does is to pad the shorter string with spaces so that

问题 Let`s have a example hotels table: CREATE TABLE `hotels` ( `HotelNo` varchar(4) character set latin1 NOT NULL default '0000', `Hotel` varchar(80) character set latin1 NOT NULL default '', `City` varchar(100) character set latin1 default NULL, `CityFR` varchar(100) character set latin1 default NULL, `Region` varchar(50) character set latin1 default NULL, `RegionFR` varchar(100) character set latin1 default NULL, `Country` varchar(50) character set latin1 default NULL, `CountryFR` varchar(50)

问题 If I have set my current locale to Japanese, how can I make it so that Japanese characters will always have higher preference than non-Japanese characters. For example, right now English characters will always appear before the Katakana characters. How can I reverse this effect? Sorry for not being very clear. As you can see here. The final results have Java, NVIDIA and Windows ファイアウォール. Ranked as the first three ahead of the Japanese characters. Is it possible to have those at the end? 回答1:

问题 What should I set for Collation when creating tables in MySQL: latin1_swedish_ci or utf8_general_ci What is Collation anyway? I have been using latin1_swedish_ci , would it cause any problems? 回答1: Whatever you do, don't try to use the default swedish_ci collation with utf8 (instead of latin) in mysql, or you'll get an error. Collations must be paired with the right charset to work. This SQL will fail because of the mismatch in charset and collation: CREATE TABLE IF NOT EXISTS `db`.`events

问题 I want a UTF8 collation for supporting: English Persian Arabic French Japanese Chinese Does UTF8_GENERAL_CI support all these Languages? 回答1: Yes, that is correct. UTF-8 is an encoding for the Unicode character set, which supports pretty much every language in the world. I think the only difference comes with sorting your results, different letters might come in a different order in other languages (accents, umlauts, etc.). Also, comparing a to ä might behave differently in another collation.

问题 Im working on auto completion search with solr using EdgeNGrams.I use solr 3.3 and I would like to use collations from suggester as a autocomplete solution for multi term searches. Unfortunately the Suggester returns only one collation for a multi term search If the user is searching for names of employees, then auto completion should be applied. ie., want results like google search. It's working fine for me below configurations. schema.xml <fieldType name="edgytext" class="solr.TextField"

问题 The issue is that ş and s are interpreted by MySQL as identical values. I'm new to MySQL, so I have no idea which collations would view them as unique. The collations that I've tried using which don't work are: utf8_general_ci utf8_unicode_520_ci utf8mb4_unicode_ci utf8mb4_unicode_520_ci Does anybody know which collation to use? P.S. I also really need the collation to interpret emojis and other non-Latin characters, and, to my knowledge of MySQL and collations, the only collation able to do

问题 I have a user table in MySQL 5.7.27 with utf8mb4_unicode_ci collation. Unfortunately, ı is not threaded as i for example, the below query won't find Yılmaz select id from users where name='Yilmaz'; I do not have the problem with other umlautes like ä and a . For example the two queries give the exact same result. select id from users where name='Märie'; select id from users where name='Marie'; I cannot simply replace ı by i and to the search, because then I would not find users with the name

问题 I'm having problems storing Swedish characters in my MySQL database. I want to store them in my table called users with the collation utf8-bin. Even though I'm using utf8, the characters å ä ö gets stored as Ã¥ ä ö and I don't know why. Retrieving the data and echoing it gives me the same output, with the weird characters instead of å ä ö . Any help is appreciated. 回答1: Call mysql_set_charset("utf8"); After connecting and before making any queries. Your database charset is just for storage,

问题 I need to transfer a column from one table to another. The source table has a different collation than the target table (latin1_general_ci and latin1_swedish_ci). I use UPDATE target LEFT JOIN source ON target.artnr = source.artnr SET target.barcode = source.barcode I get an "illegal mix of collations". What is a quick fix to get this working without having to change either table? I tried CONVERT and COLLATE to run the whole operation in UTF-8, but that didn't help. "barcode" contains numeric