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1answer
30 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 ...
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1answer
110 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 ...
0
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1answer
51 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: ...
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1answer
215 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 ...
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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 ...
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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?
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1answer
166 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 ...
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1answer
111 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 ...
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0answers
346 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 ...
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0answers
18 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 ...
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0answers
163 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 ...
1
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0answers
601 views

How do I convert unicode data from UTF-16LE to UTF-8 when migrating from SQL Server to MySQL?

Objective: Ensure existing Unicode (UTF-16LE) data is displayed the when moved to MySQL (UTF-8). Background: I'm migrating 1TB from SQL Server to MySQL. The current Collation in SS is ...
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0answers
54 views

What is the smallest encoding?

I am now using latin1 (CHAR 10 column type) and I was wondering if there is more efficient character-set to store password hash consisting of a-z0-9 characters.
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0answers
58 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. ...
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0answers
39 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 ...
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0answers
72 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 ...
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0answers
50 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 ...
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0answers
102 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 ...
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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, ...
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0answers
105 views

Oracle NLS_CHARACTERSET mismatch while import

I have source Dump with NLS_CHARACTERSET WE8MSWIN1252 NLS_NCHAR_CHARACTERSET AL16UTF16 Requires the target database system is with NLS_CHARACTERSET AL32UTF8 NLS_NCHAR_CHARACTERSET ...
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0answers
37 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 ...
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0answers
49 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 ...