http://www.sqlfiddle.com/#!2/82f65/1
I tried this:
create table x(y varchar(100) character set utf8);
insert into x(y) values('爱');
But the chinese character doesn't appear:
select y from x;
Output:
Y
?
I'm the author of sqlfiddle.com. The problem was that I didn't have my connection string and default database encoding for mysql setup to properly handle UTF8. I have fixed this now, but because the fiddle you posted is still using the obsolete settings, you'll have to see it working here on my slightly-modified version of your fiddle:
http://www.sqlfiddle.com/#!2/e79e8/1
Your link might start working eventually, it just needs to clear out of the running memory and be reset. After no one hits it for a while it should be harvested and then ready to be built back up cleanly. Thanks!
FYI, the changes I had to make to get it to work were found here: http://www.compoundtheory.com/?action=displayPost&ID=421
The relavent bits where adding this to my connection string from java:
useUnicode=true&characterEncoding=UTF-8
And adding this to my create database statement:
create database my_new_database default CHARACTER SET = utf8 default COLLATE = utf8_general_ci;
It is working fine in mysql on my localhost. it may be due to mysql charset or some setting please check it.
If you have to run this query via program like php then
run query before select query
"SET NAMES utf8"
It will be return result properly
thanks
The Chinese character is not displaying in fiddle but in actual mysql database it is working fine. Kindly check your mysql version
Related
I have a problem with MySql.
My version of MYSql is : 5.7.33 - MySQL Community Server (GPL)
I have create a discord Bot in node.js, and i have a mistake when a new user with pseudo like this : legoshi🌌🌧
So i have try to follow this topic : How to fix "Incorrect string value" errors?
So i convert my Database in : utf8mb4_unicode_ci
And my error is still here.
At the begin my database was in utf8 and i have the error too.
code: 'ER_TRUNCATED_WRONG_VALUE_FOR_FIELD',
errno: 1366,
sqlMessage: "Incorrect string value: '\\xF0\\x9F\\x8C\\x8C\\xF0\\x9F...' for column 'user' at row 1",
sqlState: 'HY000',
index: 0,
sql: 'INSERT INTO registre (id, user, autohit, ultimate, platinium, `Date Inscription`) VALUES (210490816542670849, "legoshi🌌🌧", 0, 0, 0, CURRENT_TIMESTAMP())'
}
So i don't no how to change this. I have see a lot of topic and all seems to be fix with utf8mb4_unicode_ci but not in my case.
Thanks for you're help.
In MySQL, there are several places where you can set up a character set:
On the server level
On the database level
On the table level (for each table)
On the field level for all character-based fields
On your connection (telling the server what charset will be used in packets you send to the server)
Basically, server-level, database-level and table-level are just defaults for newly created items: New databases are generated with the server's default. New tables are created with the database's default, new fields are created with the table's default. However, only the field-level charset is what actually counts.
So first, you should make sure that the fields you want to store the data in actually are set up to utf8mb4_unicode_ci. Then, you need to connect to the server using exactly the same charset. Be aware that also the collation should match.
You can find out what character set is in use by issuing the following query:
SHOW VARIABLES LIKE 'character_set_%'
You'll see several variables indicating which default is set for various scopes. Have a look especially to the variables character_set_client and character_set_connection. If the connection does not have the correct character set specified, you need to set it up on connection.
It's a good practice to have all character sets match identically. Mixed values will sooner or later cause trouble.
To check the character set which is set up for the field, have it displayed with the command
SHOW CREATE TABLE registre
I've been using a case sensitive regular expression in a MySQL query for awhile and it has worked perfectly. It suddenly stopped working this weekend, I'm guessing after an update.
Per other people's questions, I learned to use CAST as BINARY for getting the query to be case sensitive.
Below is a simplified version of the query I am using.
SELECT * FROM Table
WHERE CAST(Name AS BINARY) REGEXP 'anything in here really'
I am now getting the error:
Character set 'binary' cannot be used in conjunction with 'utf8mb4_unicode_ci' in call to regexp_like.
I currently use utf8_general_ci on everything, but tried changing the column, table, and even database to utf8_bin without any change in the error message.
I'm running mysqlnd 7.4.3 on Ubuntu and doing most everything through PHP, but debugging in phpMyAdmin.
I should also point out that I am an extreme novice who doesn't used MySQL much and and never really has a need beyond the most basic things, so online guides are the only way I've even gotten this far.
Thank you for any help you can provide!
I just encountered this error with queries like:
SELECT * FROM Table
WHERE Name REGEXP BINARY 'anything in here really'
...which previously worked without error.
I'm finding that changing it to the following kind of thing is working:
SELECT * FROM Table
WHERE CAST(Name AS BINARY) REGEXP BINARY 'anything in here really'
I've made an application in Java EE that uses Hibernate to communicate with MySQL. It works perfectly on my Windows development machine, but I have problem on debian, where the application is deployed.
When I search for keyword with Polish letters(like ł, ą, ć, ó etc,) the result is ok on Windows, but on server, where I have imported the database it does not work.
Hibernate query looks like this:
#NamedQuery(name = "Keyword.findByKeyword", query = "SELECT k FROM Keyword k WHERE k.keyword = :keyword")
and is called like this:
myEntityManager.createNamedQuery("Keyword.findByKeyword").setParameter("keyword", keyword).getSingleResult();
When I use mysql on debian via SSH and type in SELECT query manually:
SELECT * FROM keywords WHERE keyword = 'ser żółty';
it also works and return single result. Encoding and collations of tables and columns are also ok. In datasource configuration I've added
?UseUnicode=true&characterEncoding=utf8
parameters, but it also did not help. I thought that maybe there is a problem with encoding in data from request send by form, but the problem appears even if the parameter i.e. "ser żółty" is hardcoded in my repository class.
I also use Hibernate Search for indexing and the FullTextEntityManager return correct results with Polish letters.
I assume that there is some problem between Hibernate and MySQL, but I have no more ideas what could I change. Any suggestions?
Server Wildfly9.0.1, MySQL 5.6
Ok the problem was in encoding on the mysql server level. It was set to latin1 by default. To fix this follow this question Change MySQL default character set to UTF-8 in my.cnf? and edit your my.cnf file.
i have a MYSQL DB. I am storing the multi lingual characters in a table. below is the sample code.
CREATE TABLE test_multi_lang
(
language_name varchar(500) CHARACTER SET utf8 COLLATE utf8_unicode_ci
);
SET NAMES 'utf8';
insert into test_multi_lang
(language_name )
values
('ตัวอย่าง');
insert into test_multi_lang
(language_name )
values
('नमूना');
SET NAMES 'utf8';
SET character_set_results = 'utf8',
character_set_client = 'utf8',
character_set_connection = 'utf8',
character_set_database = 'utf8',
character_set_server = 'utf8';
select * from test_multi_lang;
When i run the above code in TOAD for MYSQL 7.3.1.290 and select the result set it is displaying as ?????????. but when I run the same code through mysql console it is displaying the unicode characters properly. i changed the properties of my toad as
still i am not getting the result displayed in proper format.
how can i solve this problem ?
Thanks in advance.
After trying different options what worked for me is the following setting in my.ini configuration file.
character_set_server=utf8
I'm using xampp and my.ini is located under c:\xampp\mysql\bin folder
Here's the screenshot
To see your current settings run following command in Toad
SHOW VARIABLES LIKE '%CHARACTER_SET%'
after applying the changes it should look like this:
And this is how data looks after changing the setting.
Please note that you'll have to restart mySQL server as well as Toad for this setting to take effect. This change will not be applied retroactively to existing data. you'll have to recreate the old data.
SHOW CREATE TABLE
You will find that the table (or at least the text column) is not CHARACTER SET utf8. utf8 is required there.
This is a duplicate; read it for the cause and solution.
This is probably a display problem Toad is a non unicode software so we have to do a little setup.
You have to set NLS_LANG in regedit and add Arabic language from the region settings. For guidance you can follow the below steps:-
Windows -> Run -> regedit -> HKEY_LOCAL_MACHINE -> WOW6432Node -> ORACLE -> KEY_(YOUR HOME_ID) -> NS_LANG -> VALUE AMERICAN_AMERICA.AR8MSWIN1256
Control Panel -> Region -> Administrative -> change System Locale... -> select current system language (Arabic).
Restart Toad.
Enjoy & Thanks me later
I have an instance of MySQL 5.0.4.1 with an application written in Hibernate. On one of the pages, I get the following error message in the server log:
Unknown character set index for field '123' received from server.at com.mysql.jdbc.Connection.getCharsetNameForIndex(Connection.java:1664)at com.mysql.jdbc.Field.(Field.java:144)at com.mysql.jdbc.MysqlIO.unpackField(MysqlIO.java:506)at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:280)at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1319)at com.mysql.jdbc.MysqlIO.sqlQuery(MysqlIO.java:1218)at com.mysql.jdbc.Connection.execSQL(Connection.java:2233)at com.mysql.jdbc.Connection.execSQL(Connection.java:2193)at com.mysql.jdbc.Connection.execSQL(Connection.java:2174)at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:536)at org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:268)at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.setAutoCommit(PoolingDataSource.java:293)at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:194)at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:186)at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:162)at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:603)at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:579)at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:556)at org.springframework.transaction.interceptor.TransactionAspectSupport.doCloseTransactionAfterThrowing(TransactionAspectSupport.java:284)at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:100)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)at org.acegisecurity.intercept.method.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:66)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)at org.acegisecurity.intercept.method.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:66)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:176)at $Proxy6.getDataFromDatabase(Unknown Source)at org.myCompany.myAction.load(Unknown Source)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:324)at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:274)at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:194)at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)at javax.servlet.http.HttpServlet.service(HttpServlet.java:787)at javax.servlet.http.HttpServlet.service(HttpServlet.java:908)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:264)at org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107)at org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72)at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:110)at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:217)at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:229)at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:274)at org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:148)at org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:98)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:280)at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:509)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218)at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:509)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:209)at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:509)at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:157)at com.iplanet.ias.web.WebContainer.service(WebContainer.java:579)
This error occurs on a production environment so I don't know which query produced the problem, but I do know that none of my tables has a column named '123'. Do you have any suggestions about what might be causing this problem?
Edit: As a followup, I found that this behavior is a known bug in MySQL 5.0.4, but I haven't found a good wokaround since I don't have the option of upgrading mySQL.
Could be that somehow the character set for the field has been set to an invalid value, run this SQL on the server with the problem replacing the table name and the column 'Collation' will show the characterset for each varchar/char fields
SHOW FULL COLUMNS IN table_name;
You can then change the character set of a field by using the following:
ALTER TABLE t MODIFY col1 VARCHAR(50) CHARACTER SET latin1;
Internally, MySQL is mapping out the indexes across the columns. Normally this is done using integers that represent the column index. Most indexes are actually a compound index once built (col 1 + col 3) which form something like field 13.
Likely this happened when migrating data from dev into production when the stack is not an exact replica.
As 3urdoch mentioned you can pull the charset using internal MySQL function; and then change the table's charset to a compatible encoding.
Alternatively (where I'm willing to bet this issue came from) you can check if the loaded driver for the Production matches the loaded driver for the Other server. This will prevent re-occurring issue if the Development/Other server is still being used for testing, and migrated into Production.