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Mysql Error Number 1071

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Specified Key Was Too Long; Max Key Length Is 767 Bytes Mysql

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Mysql Innodb_large_prefix

a minute: Sign up #1071 - Specified key was too long; max key length is 767 bytes up vote 194 down vote favorite 43 When I executed the following command: ALTER TABLE `mytable` ADD UNIQUE ( `column1` , `column2` ); I

Mysql Innodb Increase Max Key Length

got this error message: #1071 - Specified key was too long; max key length is 767 bytes Information about column1 and column2: column1 varchar(20) utf8_general_ci column2 varchar(500) utf8_general_ci I think varchar(20) only requires 21 bytes while varchar(500) only requires 501 bytes. So the total bytes are 522, less than 767. So why did I get the error message? #1071 - Specified key was too long; max key length is 767 bytes mysql byte varchar mysql-error-1071 share|improve this question edited May 23 '11 mysql max key length at 21:32 OMG Ponies 199k37360417 asked Nov 29 '09 at 3:18 Steven 5,2993480112 Because its not 520 bytes, but rather, 2080 bytes, which far exceeds 767 bytes, you could do column1 varchar(20) and column2 varchar(170). if you want a character/byte equiv, use latin1 –Rahly Dec 18 '15 at 0:21 add a comment| 17 Answers 17 active oldest votes up vote 137 down vote accepted 767 bytes is the stated prefix limitation for InnoDB tables - its 1,000 bytes long for MyISAM tables. According to the response to this issue, you can get the key to apply by specifying a subset of the column rather than the entire amount. IE: ALTER TABLE `mytable` ADD UNIQUE ( column1(15), column2(200) ); Tweak as you need to get the key to apply, but I wonder if it would be worth it to review your data model regarding this entity to see if there's improvements that would allow you to implement the intended business rules without hitting the MySQL limitation. share|improve this answer edited Oct 15 '14 at 20:20 The Alchemist 2,6901017 answered Nov 29 '09 at 3:52 OMG Ponies 199k37360417 To apply by specifying a subset of the column rather than the entire amount. A good solution. –Steven Nov 29 '09 at 4:14 @OMGPonies: Do you happen to know, if DB2/MSSQL/Oracle have the same limitation on index size? For example HSQL does not have such limitation... –dma_k Nov 10 '11 a

18:54 Reporter: Bent Vangli Email Updates: Status: Not a Bug Impact on me: None Category:MySQL Server: MyISAM storage engine error 1709 (hy000): index column size too large. the maximum column size is 767 bytes. Severity:S2 (Serious) Version:4.1.7 OS:Linux (Linux (Fedora Core 2)) Assigned to: Matt Lord django.db.utils.operationalerror: (1071, 'specified key was too long; max key length is 767 bytes') View Add Comment Files Developer Edit Submission View Progress Log Contributions [13 Nov 2004 12:28] Bent Vangli mysql max key length is 3072 bytes Description: When I try to execute the following SQL statement: CREATE TABLE phpgw_lang ( lang varchar(5) NOT NULL DEFAULT '', app_name varchar(100) NOT NULL DEFAULT 'common', message_id varchar(255) NOT http://stackoverflow.com/questions/1814532/1071-specified-key-was-too-long-max-key-length-is-767-bytes NULL DEFAULT '', content text, PRIMARY KEY(lang,app_name,message_id) ); I got MySQL Error: 1071, Specified key was too long; max key length is 1000 bytes When I shorten message_id to varchar(228) it works. varchar(229) doesn't. I am using UTF8 as default charset on my MySQL engine. I cannot see anything wrong with above statement. However, I probarly got this error https://bugs.mysql.com/bug.php?id=6604 because multibyte preferable UTF8 character set uses much more bytes than the number of characters. Looking at the numbers, you find (5 + 100 + 228) * 3 = 999, which is less than 1000. and contrary (5 + 100 + 229) * 3 = 1002. I looks like MySQL are using a factor of 3, maybe hardcoded? But in normal western languages this is normally much less than 3 times, maybe more like 1.2 - 1.5. I Had put this on Serious Severity because it disables the possibility to install eGroupWare from http://www.egroupware.org/ using MySQL 4.1.x. With very best regards Bent Vangli PS! I do compile and install from source. If guided to sourcefiles involved, I may do some testing. How to repeat: Run above statement on a MySQL 4.1.7 with UTF8 as default charset on a Fedora Core 2 (Linux kernel 2.6). Proberly also on other OS using UTF8. Suggested fix: Suggestion 1: Add a runtime or compiler variable/setting allowing to increase this 1000 bytes limit, or suggestion 2: Count chara

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 http://dba.stackexchange.com/questions/11393/mysql-error-1071-specified-key-was-too-long-max-key-length-is-1000-bytes-whil and policies of this site About Us Learn more about Stack Overflow https://developer.appway.com/screen/ForumDisplaySingleThread/selectedThreadId/1514558526959 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 max key 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 - ERROR 1071 Specified key was too long; max key length is 1000 bytes while restoring dump up vote 4 down vote favorite while trying to restore max key length a MySql Dump, i get the following error: ERROR 1071 (42000) at line 25: Specified key was too long; max key length is 1000 bytes any ideas? mysql mysqldump share|improve this question edited Jan 23 '12 at 16:41 RolandoMySQLDBA 108k15139276 asked Jan 23 '12 at 15:54 Ran 58351223 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote accepted You may to have adjust some VARCHAR length in some table based on the Character Set you are using. That exact error message is actually posted as a bug report from Nov 2004, when in fact, it is not really a bug. That should direct you on how to adjust key lengths, especially your PRIMARY KEYs. If you know which table is causing the Error 1071, you have to do the following: Step 01) mysqldump only database schema mysqldump --routines --triggers --all-databases --no-data > MySQLSchema.sql Step 02) mysqldump only data mysqldump --all-databases --no-create-info > MySQLData.sql Step 03) Using vi or some other editor, edit the table's PRIMARY KEY to manually limit the PRIMARY KEY in such a way

November 24, 2015 at 10:24 AMVersion 6.2.9Abdul Abudhahir postedon November 24, 2015at 10:24 AMVersion 6.2.9Hello I am using 6.2.9 and trying to setup MySQL DB, (following System Installation (Appway 6), section 4.2.1). When I run the ddl for Mysql I get the following error message. Error Code: 1071. Specified key was too long; max key length is 3072 bytes What is the significance of 4000 char id? Can I reduce the size of ID? In short :-) how should I Proceed? Thanks and Regards Urs replied on November 25, 2015 at 8:51 AMUrs repliedon November 25, 2015at 8:51 AMWhich MySQL server version are you using? Which MySQL storage engine are you using / is set by default? Abdul Abudhahir replied on November 25, 2015 at 8:54 AMAbdul Abudhahir repliedon November 25, 2015at 8:54 AMMySQL - 5.7.9 Community Edition MySQL - INNODB, I didnot change anything I left it for default. Urs replied on November 25, 2015 at 2:37 PMUrs repliedon November 25, 2015at 2:37 PMI investigated a little. It seems MySQL's behavior changed from 5.5 to 5.6 or 5.7. I'll discuss this with the responsible persons. As a workaround you could install a MySQL 5.5 or reduce the key size to 1024 (MySQL calculates 3 bytes for an UTF-8 character, so 3072 / 3 = 1024). reducing the key site I would not do for a productive system, so dev only. Urs replied on November 25, 2015 at 3:17 PMUrs repliedon November 25, 2015at 3:17 PMSorry, you may use an alternative query like "CREATE TABLE valuestores (id VARCHAR(4000) NOT NULL, data LONGBLOB NOT NULL, INDEX(id(1024)));" with limiting the index length to 1024 UTF-8 characters. Abdul Abudhahir replied on November 25, 2015 at 4:04 PMAbdul Abudhahir repliedon November 25, 2015at 4:04 PMYes I did that already, not the previous suggestion, its about the index key length. Please sign in to add a replyAbout this site | Terms of use | Privacy statement | RSS | Contact us© 2016 Appway AG. All Rights Reserved.

 

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database error 1071 while doing query

database error while doing query p version roll out and QA raquo phpList maintainer needed raquo UI lite phpList plugins raquo phpList API raquo rssmanager phpList org My View View Issues Change Log RoadmapView Issue error specified key was too long max key length is bytes Details Jump to Notes Print IDProjectCategoryView StatusDate SubmittedLast Update phplistAll Otherpublic - - - - ReporterdanieleintPrioritynormalSeverityminorReproducibilityalwaysStatusresolvedResolutionfixedPlatform-OS-OS Version-Product Version Target Error hy Index Column Size Too Large The Maximum Column Size Is Bytes Version XFixed in Version Summary Unable to install with UTF- database using MySql DescriptionMysql limit the index lenght to bytes The Error

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error sqlstate er too long key p exceeded the limit of the maximum error specified key was too long max key length is bytes key length A key can not be longer than bytes error hy index column size too large the maximum column size is bytes bytes for InnoDB Please note that this limit is set in bytes not in characters So if you use a multi-byte Innodb large prefix character set you can get this error even if the sum of column lengths is less than because column length is defined in characters Below is an example of

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Fusion Pro Error p Register FAQ Calendar Today's Posts Search Notices If you are not registered or logged in you can view the forums but you cannot post to them The latest version of Error Specified Key Was Too Long Max Key Length Is Bytes FusionPro VDP is Windows and Mac span Adobe Acrobat DC Adobe InDesign specified key was too long max key length is bytes CC Mac OS X El Capitan and span Windows are now supported Please follow MarcomCentral on LinkedIn Facebook Error Specified Key Was Too Long Max Key Length Is Bytes Instagram and Twitter We

mysql error 1071 max key length

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mysql error 1071 key too long

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mysql error 1071 specified key was too long

Mysql Error Specified Key Was Too Long p 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 specified key was too long max key length is bytes innodb more about Stack Overflow the company Business Learn more about hiring developers or Specified Key Was Too Long Max Key Length Is Bytes Mysql posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Mysql Innodb Increase Max Key Length

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Mysql Error p CI MySQL Sandbox MariaDB data chef Adtech Twitter GitHub RSS Using Innodb large prefix to Avoid ERROR If you've ever tried to add an index that includes a long varchar column to an InnoDB table in MySQL you may have seen this error Specified Key Was Too Long Max Key Length Is Bytes Mysql span class 'line' ERROR Specified key was too long max key length is specified key was too long max key length is bytes mysql bytes span The character limit depends on the character set you use For example if you use latin then

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