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0
votes
1answer
128 views

Cannot set character_set_database and character_set_server to utf8mb4

I'm trying to convert my MySQL server and its already existing schemas to the utf8mb4 character set. Preliminary Notes: I'm using Xampp (with MySQL 5.6.24). Default options are read from the ...
1
vote
0answers
26 views

PL/SQL developer can't insert Unicode characters into oracle database

I've been meddling with charset/encoding problems of Oracle database and PL/SQL developer and these are what I have done: Change the server charset to AL32UTF8 Add system environment variable ...
0
votes
1answer
117 views

Want to create partitions of a MySQL table and change the charset of new partitions

I have a database table which contains large amount of data. I have written a script to create new partitions every week and drop old partitions (which are of no use). Currently, I have a column in ...
1
vote
2answers
66 views

UTF8 Trouble while migrating from MSSQL to MySQL with MySQL Workbench

I am tasked with migrating part of our database from an on-site MSSQL server to an Amazon RDS MySQL. This will be my first attempt with a database migration, so I am doing a dry run from our MSSQL ...
0
votes
1answer
4k views

How to convert a MySQL database from utf8mb4 to utf8?

I would like to convert a MySQL database, which has utf8mb4 character set and utf8mb4_unicode_ci collation, to utf8 and utf8_unicode_ci. How to do that please? Thank you in advance for your ...
0
votes
1answer
244 views

Removing per column and table collation and charset

I recently completed a transition of a database from CHARSET=utf8 COLLATE=latin1 to CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci. During the process tables were migrated one at a time by altering their ...
0
votes
1answer
176 views

change character set in mysql permanently

I want to change following parameters to utf8mb4 so that mysql can store emoji characters and special language characters. but when i try running following statements one by one SET ...
4
votes
1answer
9k views

Setting default charset/collation for MySQL database

I have a MySQL DB that used to be latin1, and I changed all the columns in all the tables to be utf8. However, I evidently didn't do all I had to do, because I just found that I have a crazy mixture ...
1
vote
1answer
389 views

Master and slave tables with different character sets - will replication break?

We have some huge tables in our MySQL 5.6 database that have latin-1 as their character set, and want to convert them all to UTF-8 (along with converting the database's global character set). The ...
0
votes
1answer
50 views

Stored Procedure Is Slower Than Query Due to Collation

I'm running two servers with MySql installed. I'm having an issue with a slow stored procedure (approximately 3 secs vs 0.1 seconds), solely on my production server, that is very quick on development ...
1
vote
3answers
68 views

character set, not set correctly

I have two database with a table with utf8 table, I wanted to change the encoding of a column, I used two scenarios but a problem happened to me. at first the table was like this : CREATE TABLE `...
1
vote
1answer
115 views

ERROR 1071 (42000): Specified key was too long; max key length is 767 bytes

I have a databases with latin1 charachter set, I need to change tables character set to utf8, but I get error. the current character set is : mysql> show variables like "%character%"; +-----------...
0
votes
1answer
53 views

How large space will be occupied by mysql for a varchar utf8 column?

Tip: To save space with UTF-8, use VARCHAR instead of CHAR. Otherwise, MySQL must reserve three bytes for each character in a CHAR CHARACTER SET utf8 column because that is the maximum possible length....
0
votes
0answers
71 views

Oracle SUBSTRB function using different character-set

SUBSTRB returns the substring with the length calculated in bytes. Though I didn't find it documented anywhere but it seems that the byte length calculation is done based on database character-set. ...
0
votes
1answer
32 views

What are the side effects of changing MySQL `character_set_server`?

I am having some strange issues with character sets on my system. After digging through all kinds of settings, I found a discrepancy in my character set settings. When I run show variables like '...
5
votes
1answer
412 views

Dump with special characters in table column name

I'm taking over an old database, and while doing recovery tests from my dump I found out a table is wrongly backed up, the table definition is truncated. Looking at the live db I've found a column ...
0
votes
2answers
42 views

Convert all the data of table (which have both encoding data) into single encoding either utf8 or latin1 [closed]

We have table which consists of two different encoding data (utf8 and latin1) which has been inserted from two different use cases of application. We are getting broken strings issue for other ...
0
votes
0answers
42 views

Characterset in SQL Server - Migrating data from Oracle 8i to SQL Server 2012

I'm migrating data from Oracle 8i to a new MS SQL Server instance (2012). My Oracle database has: NLS_CHARACTERSET = US7ASCII I'm completely new to SQL Server - how do I configure the SQL Server ...
0
votes
1answer
41 views

howto choose the right character set in MariaDB

if there are multiple character sets that can properly encode my data, how to choose one? Is there any difference in disk or memory usage? When joining tables do they need the same char set? Other ...
11
votes
3answers
42k views

SQL Server 2005/2008 UTF-8 Collation/Charset

I can't find option(s) directly to set UTF-8 rellated Collations/Charsets in SQL Server 2005/2008, same as is possible to set in another SQL engines, but in SQL Server 2005/2008 are there only Latin ...
1
vote
2answers
534 views

Oracle DB export, possible charset conversion if NLS_LANG not set

I need to export an Oracle database from one server and import it on another server. But I am getting the following information message at the beginning: Connected to: Oracle Database 10g Release ...
1
vote
2answers
42 views

Which accented characters are considered the same?

In MySQL, certain characters are considered the same when performing searches, e.g. 'n' and 'ñ'; unless you specify BINARY in the condition. Is there a list somewhere of the characters that are ...
0
votes
1answer
30 views

How to determine character encoding in Hyper SQL database

I have Hyper SQL database and I don't know what is current character set. Is it set for whole DB or it can be different for every table? How to evaluate encoding in my base?
3
votes
2answers
7k views

Modify all tables in a database with a single command

Is there a single or a one line command to modify all tables within a database. I would like to issue this command in every table within a database: ALTER TABLE `table_name` CONVERT TO CHARACTER SET ...
0
votes
0answers
81 views

Properly configuring Oracle Charset and NLS parameters

I'm trying to figure out the reason why Oracle SQL Developer shows question marks/rubbish on non-latin symbols. Currently I have 2 DBs on separate severs/instances, one of which works fine, and the ...
3
votes
2answers
200 views

Are there any known problems caused by having NLS_LENGTH_SEMANTICS set to CHAR on an Oracle database?

I've always thought that anyone using a database where NLS_LENGTH_SEMANTICS set to BYTE when using a multi-byte character set needed their heads examined, but recently a customer of ours said that ...
2
votes
1answer
3k views

How to disable case sensitivity in SQL Server 2012?

I tried to update collation_name in sys.databases. I am trying to change 'SQL_Latin1_General_CP1_CS_AS' to 'SQL_Latin1_General_CP1_CI_AS' in order to disable case sensitivity in table. update d set d....
0
votes
0answers
52 views

Searching/selecting database content and smart quotes

I have a utf8 encoded mysql table where the content has been entered using smart quotes. My client is complaining that when users search the site content, the relevant results don't show up. This is ...
1
vote
0answers
187 views

Unicode character replication MSSQL to MYSQL in Symmetric DS

I'm doing replication from MSSQL to MYSQL using symmetricds and it is working fine. Now , the problem is: In the SQL Server table , I have a column defined as NVARCHAR(20) which accepts unicode ...
0
votes
1answer
52 views

Trying to support unicode in MySQL database

I am doing a project in which I have to save tweets into my MySQL database. The problem is some tweets contains smilies and other symbols which I am not able to save - it shows error like below: ...
0
votes
2answers
138 views

Handling lossy data before character- set migration

I am trying to migrate a database from US7ASCII to AL32UTF8 using CSSCAN. During the initial scanning using CSSCAN we have found the presence of lossy data both in data dictionary() and application ...
0
votes
0answers
114 views

Firebird 2.5 - difference between starting with and = (equal) string searches

Background I have DB that was created on Windows, FB 2.5.0 (long ago). It was subsequently upgraded, over the years, to 2.5.4. Yesterday I wanted to test it on Ubuntu, which has FB 2.5.2 maintained ...
4
votes
1answer
19k views

Why default character_set_server is latin1?

I am using MySQL 5.5 and when I show variables about charset, I have +--------------------------+----------------------------+ | Variable_name | Value | +--------------...
2
votes
1answer
385 views

Remove question marks from database(latin1_general_ci table)?

How can I remove question marks(not diamond shaped) from a latin1_general_ci MyISAM table? I tried going back to utf8 and tried to apply things in http://stackoverflow.com/questions/1476356/detecting-...
0
votes
0answers
80 views

nbsp character might not be passing as nbsp to the MySQL backend

I am following a tutorial where a web application written in PHP, blacklists spaces from the input(The 'id' parameter). The task is to add other characters, which essentially bypasses this blacklist, ...
2
votes
2answers
3k views

ORA-12899: importing a .dmp file + character set conversion

I'm working on a django project on Ubuntu 10.04 with Oracle Database Server , so I've installed: Oracle Database 10g xe universal Rel.10.2.0.1.0 cx_Oracle-5.0.4-10g-unicode-py26-1.x86_64 When I ...
3
votes
0answers
370 views

utf8mb4 in SQL Server Express

We have some web applications based on databases using utf8mb4 as character set and utf8mb4_Standard as collation. We saw that we can use any character we want with this setting. In SQL Server ...
1
vote
2answers
4k views

unable to insert utf8mb4 characters in mysql 5.6

recently i was facing problem in inserting emoji and other 4 bytes character in my mysql database then i found that my mysql version was 5.1 and it does not support utf8mb4 so i upgraded to mysql 5.6 ...
0
votes
0answers
38 views

Database Importing Collation

Migrating from DB2 found this error message: Error message: Incorrect string value: '\xF2\xAC\x9F\xB0or...' for column 'column_name' This is when trying to import an XML to MySQL. I should have a ...
0
votes
1answer
204 views

Gotchas converting latin1_swedish_ci to utf8mb4_unicode_ci

I have a MySQL 5.5.31 database which has approx 220 tables - of these 220 tables, around half of them are already using utf8mb4_unicode_ci but the "older" tables are still using latin1_swedish_ci. The ...
1
vote
1answer
27 views

extract all unique chars from all texts across the table

I have a huge mysql table (20 columms by 320.000 rows) that contains a lot of text from a lot of languages and the problem is that I need to identify all the unique characters in that table. For ...
0
votes
0answers
51 views

Slave executing queries with different charset

I need to change a database charset because of this issue and I solved my issue in staging environment with the SQL command ALTER TABLE `articles` CONVERT TO CHARACTER SET utf8 COLLATE ...
1
vote
2answers
2k views

MySQL silently replaces UTF chars with literal question marks

I'm experiencing a situation similar to this SO question i.e. I'm working with a legacy database which has UTF8 content in latin1 tables (pretty ugly I know). Now I'm getting new data from a new ...
2
votes
2answers
5k views

SQL Server to MySQL migration - how can I remove UCS-2 surrogate pairs in SQL Server?

I have been tasked with migrating a SQL Server 2005 database to MySQL 5.6 (these are both database servers runnig locally) and would really appreciate some help. -------Edit - Answered------- This ...
1
vote
1answer
52 views

How to determine column character set used on creation?

I have this SQL creation statement: CREATE TABLE `testdb`.`new_table` ( `id` INT NOT NULL AUTO_INCREMENT, `text_default` VARCHAR(45) NULL, `text_latin` VARCHAR(45) CHARACTER SET 'latin1' ...
2
votes
1answer
1k views

DBD::mysql complains “Character set 'latin1' is not a compiled character set”

I think this boils down to "Am I doomed to upgrading mysql hoping the problem goes away?". I've seen a few of the same issues around the internet but with no guidance on a fix other than "Did you turn ...
2
votes
2answers
1k views

How to convert html entities in Oracle?

I'm trying to decode html containing html entities. I've tried dbms_xmlgen.convert and utl_i18n.unescape_reference but the results are less than satisfactory. SET ESCAPE ON; SELECT 'dbms_xmlgen....
2
votes
1answer
95 views

False positive error message in MS Access (concurrent users)

I have discovered a strange apparent bug in MS Access and would like to know if others know it already and hopefully how to get around it. Trying to count records based on known column categories. ...
0
votes
1answer
3k views

MySQL Workbench run SQL script file Character Set encoding issue

Upon running a .sql file for creating a schema in MySQL Workbench 6.1, it prompts a window saying it cannot decide the right character set What's the proper thing to do?
0
votes
1answer
15 views

Completely disable all support for a certain CHAR SET in MySQL?

Is it possible to completely disallow certain charsets in MySQL and force an error and/or force everything into the server's chosen default charset?