Error Code 1267. Illegal Mix Of Collations Utf8_general_ci Implicit
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Mysql Illegal Mix Of Collations (utf8_unicode_ci Implicit) And (utf8_general_ci Implicit)
this site About Us Learn more about Stack Overflow the company Business Learn more about hiring mysql illegal mix of collations for operation '=' developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is illegal mix of collations for operation 'like' a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=' up vote 56 down vote favorite 15 Error msg on MySql: Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=' I
Mysql Illegal Mix Of Collations For Operation 'concat'
have gone through several other posts and was not able to solve this problem. The part affected is something similar to this: CREATE TABLE users ( userID INT UNSIGNED NOT NULL AUTO_INCREMENT, firstName VARCHAR(24) NOT NULL, lastName VARCHAR(24) NOT NULL, username VARCHAR(24) NOT NULL, password VARCHAR(40) NOT NULL, PRIMARY KEY (userid) ) ENGINE = INNODB CHARACTER SET utf8 COLLATE utf8_unicode_ci; CREATE TABLE products ( productID INT UNSIGNED NOT NULL AUTO_INCREMENT, title VARCHAR(104) NOT NULL, picturePath VARCHAR(104) NULL, pictureThumb VARCHAR(104) NULL, creationDate DATE NOT NULL, closeDate DATE NULL, deleteDate DATE NULL, varPath VARCHAR(104) NULL, isPublic TINYINT(1) UNSIGNED NOT NULL DEFAULT '1', PRIMARY KEY (productID) ) ENGINE = INNODB CHARACTER SET utf8 COLLATE utf8_unicode_ci; CREATE TABLE productUsers ( productID INT UNSIGNED NOT NULL, userID INT UNSIGNED NOT NULL, permission VARCHAR(16) NOT NULL, PRIMARY KEY (productID,userID), FOREIGN KEY (productID) REFERENCES products (productID) ON DELETE RESTRICT ON UPDATE NO ACTION, FOREIGN KEY (userID) REFERENCES users (userID) ON DELETE RESTRICT ON U
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Collation 'utf8_unicode_ci' Is Not Valid For Character Set 'latin1'
programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Illegal mix of collations error in MySql up vote 25 down vote favorite 10 Just got this answer from a previous http://stackoverflow.com/questions/11770074/illegal-mix-of-collations-utf8-unicode-ci-implicit-and-utf8-general-ci-implic question and it works a treat! SELECT username, (SUM(rating)/COUNT(*)) as TheAverage, Count(*) as TheCount FROM ratings WHERE month='Aug' GROUP BY username HAVING TheCount > 4 ORDER BY TheAverage DESC, TheCount DESC But when I stick this extra bit in it gives this error: Documentation #1267 - Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (latin1_general_ci,IMPLICIT) for operation '=' SELECT username, (SUM(rating)/COUNT(*)) as TheAverage, Count(*) as TheCount FROM ratings WHERE month='Aug' **AND username IN (SELECT username http://stackoverflow.com/questions/1241856/illegal-mix-of-collations-error-in-mysql FROM users WHERE gender =1)** GROUP BY username HAVING TheCount > 4 ORDER BY TheAverage DESC, TheCount DESC The table is: id, username, rating, month mysql collation mysql-error-1267 share|improve this question edited Jun 27 '14 at 11:08 Rikesh 19k104166 asked Aug 6 '09 at 22:21 Oliver 2591718 add a comment| 15 Answers 15 active oldest votes up vote 7 down vote accepted Check the collation type of each table, and make sure that they have the same collation. After that check also the collation type of each table field that you have use in operation. I had encountered the same error, and that tricks works on me. share|improve this answer edited Jan 16 '12 at 13:12 bluish 9,4041269126 answered Sep 29 '09 at 10:01 1mr3yn add a comment| up vote 50 down vote Here's how to check which columns are the wrong collation: SELECT table_schema, table_name, column_name, character_set_name, collation_name FROM information_schema.columns WHERE collation_name = 'latin1_general_ci' ORDER BY table_schema, table_name,ordinal_position; And here's the query to fix it: ALTER TABLE tbl_name CONVERT TO CHARACTER SET latin1 COLLATE 'latin1_swedish_ci'; Link share|improve this answer edited Feb 6 '13 at 23:59 answered Apr 21 '11 at 16:32 Dean Rather 13k104262 Thanks, this saved my day! –rahimv Aug 15 at 8:46 add a comment| up vote 5 down vote I was getting
dreaded illegal-mix-of-collations error. The occasional query would result in Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '='. MySQL’s default character https://airbladesoftware.com/notes/fixing-mysql-illegal-mix-of-collations/ set is latin1 with an adventurous Swedish collation, which presumably seemed http://dba.stackexchange.com/questions/24587/mysql-illegal-mix-of-collations like a good idea at the time. However Rails uses UTF-8 everywhere and from time to time the two collations collide. Fortunately this problem is not new and clever people have already solved it: see Getting out of MySQL Character Set Hell and Fixing a MySQL Character illegal mix Encoding Mismatch. Those two articles advise more or less the same process. Here I’m just jotting down some notes where I found something confusing or ambiguous in case I ever have to do this again. Order of events After exporting the data and hacking the dump file, I wasn’t sure whether to configure MySQL for UTF-8 and then import illegal mix of the data, or the other way round. I chose to import the data and then configure MySQL to avoid double-encoding the data. It seems to have worked. It silently truncated all my accented text but I was able to fix that. Take stock First figure out where you stand. In MySQL do this: mysql> show variables like 'char%'; The result you want is this: +--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | utf8 | | character_set_connection | utf8 | | character_set_database | utf8 | | character_set_filesystem | binary | | character_set_results | utf8 | | character_set_server | utf8 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ At this stage several of these values will be latin1. Similarly for collation: mysql> show variables like 'collation%'; +----------------------+-----------------+ | Variable_name | Value | +----------------------+-----------------+ | collation_connection | utf8_general_ci | | collation_database | utf8_general_ci | | collation_server | utf8_general_ci | +----------------------+-----------------+ The utf8_general_ci collation will do but ideally we want utf8_unicode_ci. The former basically ignores all accents: it treats ‘ΓΌ’ the s
log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top MySQL: Illegal mix of collations up vote 6 down vote favorite I've tried using a stored procedure to create indices, and got the following error: ERROR 1267 (HY000): Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8_unicode_ci,IMPLICIT) for operation '=' There's no line number or any other debugging hint. What's the best way to debug this error? Are there any good guidelines to avoid encoding inconsistencies? mysql collation utf-8 encoding share|improve this question edited Sep 20 '12 at 11:12 asked Sep 20 '12 at 9:15 Adam Matan 2,425104271 add a comment| 1 Answer 1 active oldest votes up vote 4 down vote accepted After some trial and error, I've learned how and where to apply COLLATE: Converted lines like: SELECT SOMETHING FROM SOMEWHERE WHERE table_schema = given_database AND table_name = given_table AND index_name = given_index; To: SELECT SOMETHING FROM SOMEWHERE WHERE table_schema COLLATE utf8_unicode_ci = given_database AND table_name COLLATE utf8_unicode_ci = given_table AND index_name COLLATE utf8_unicode_ci = given_index; share|improve this answer answered Sep 20 '12 at 12:41 Adam Matan 2,425104271 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Not the answer you're looking for? Browse other questions tagged mysql collation utf-8 encoding or ask your own question. asked 4 years ago viewed 7363 times active 2 years ago Linked 28 MySQL: Create index If not exists Related 2Tell MySQL to start using utf-8 encoding without `convert to`ing it1Recover original