A collation is a set of rules that determine how data is sorted and compared for comparing characters in a character set.

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How can I change collation for all tables and columns in MySQL database?

I have a problem with MySQL collation. It turns out that MySQL uses latin1_swedish_ci by default. Collation setup step has been missed on MySQL database instantiation for some reason. Thus, ...
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Correct Code Page or Collation in SQL Server for Portuguese characters

I'm inserting data (Bulk insert and merge update) for a Portuguese data source (CSV files) into my database. Although the DB collation is Latin1-General, case-insensitive, accent-sensitive, ...
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sql_slovak_cp1250_ci_as vs Slovak_CI_AS

Can someone explain to me what is the difference between collation sql_slovak_cp1250_ci_as vs Slovak_CI_AS? I have a db set to sql_slovak_cp1250_ci_as and shared hosting supports only Slovak_CI_AS. ...
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MySQL collate error occurs when sent by PHP app but does not occur in phpMyAdmin

I have a query that uses: t3.`value` LIKE "%someval%" COLLATE utf8_general_ci I load the page in my browser and get this error printed to the screen: COLLATION 'utf8_general_ci' is not valid for ...
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How to determine the collation of a table in PostgreSQL?

I want to script a check of the collations used on my tables in PostgreSQL, but googling for Postgresql detect collation is not working well for me, and the documentation is not making this an easy ...
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SQL Server: Collation of the resource database

I'm trying to use stopwords so that some words are skipped by the Full-Text Indexer. I can add those stopwords in the table sys.fulltext_stopwords. When trying to get a list of stopwords and ...
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Custom doctrine default character set [closed]

In my.ini mysql file, i have this : [mysqld] collation-server = utf8_general_ci character-set-server = utf8 When i create my database with "doctrine:database:create", my collation db is in ...
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What would make a MySQL database create tables in a different collation other than its default?

I am adding tables to a Wordpress database on my localhost and it is changing my collation from utf8_general_ci to latin1_swedish_ci. I'm kinda stumped because I'm not familiar with working directly ...
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SQL Server 2012 : how to add missing collation

When we run: ALTER DATABASE abc COLLATE Latin1_General_CP1_CI_AS ; GO we receive: Msg 448, Level 16, State 3, Line 1 Invalid collation 'Latin1_General_CP1_CI_AS'. How can we add the missing ...
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SQL fulltext accent insensitive

I am using SQL Server fulltext containstable and the column which is indexed has collation Czech_CS_AS, so why when I have word "byt" it returns records with word "být" too. I thought that the ...
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MySQL: Illegal mix of collations

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 ...
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Why not use SQL_Latin1_General_CI_AS for a global system?

What would be some really good reasons to not use the SQL_Latin1_General_CI_AS collation on a system which handles English, German, Japanese, and Chinese data? I'm having a really hard time finding ...
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Server Collation Change Error [closed]

I am using following command to change the collation of my SQL Server R2 (10.50.1600): setup.exe /QUIET /ACTION=REBUILDDATABASE /INSTANCENAME=MSSQLServer /SQLSYSADMINACCOUNTS=sa /SAPWD=**** ...
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How do I resolve Postgresql error, 'no collation was derived for column “foo” with collatable type citext'?

Just recently I upgraded from Postgresql 8.4.11 to 9.1.3. I used pg_dump in the process. Now I'm getting an error: ERROR: no collation was derived for column "vin" with collatable type citext ...
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1answer
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Changing collation type database-wide in MySQL

How do I retroactively update the collation type database wide without dropping and recreating it? I accidentally created a database without specifying UTF8 as the default collation type. I then went ...
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1answer
419 views

MySQL Character set and Collation Issue.?

I Have a table when i select from the table i got the invalid data as mysql> select budgetID,StartDate,modifiedBy from Table_name order by budgetID desc limit 10; ...
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Treating certain Arabic characters as identical

In Arabic we have characters like ا (alef) and أ (alef with hamza). Users write them interchangeably and we want to search them interchangeably. SQL Server treats them as separate characters. How ...
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Design SQL Server 2008 new install … which collation?

A customer has a SQL Server 2005 instance, collation SQL_Latin1_General_CP1_CI_AS, with 8 databases ... for a new application, we have been asked to install a SQL Server 2008 with collation ...
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SQL Server Collation for Arabic, Hebrew, English and French

I have new SQL Server database which need to have support in 3 different languages. What character sets and collations do I need to choose if I want my database to support the following: Hebrew ...
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Installed SQL Server 2000 with wrong collation.. how to correct for entire server instance?

I installed SQL 2000 Developer (yes, old, don't ask) on my laptop ... with the wrong collation. Oops! It's showing Latin1_General_CI_AS, but it turns out I need to use SQL_Latin1_General_CP1_CI_AS ...
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SQL Server collation mismatch

I have database server with collation: SQL_Latin1_General_CP1_CI_AS I got database backup file which collation is: Latin1_General_CI_AS When I'm restoring this database and executing some SQL, I'm ...
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Why cp1256 collation is not 1 byte in MySQL?

I've read an article that cp1256 collation takes 1 byte for Arabic characters, but when I created an index on the column that was cp1256 with type of varchar(900), only 767 characters picked up for ...
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What's the differences between utf8_general_ci and utf8_unicode_ci and utf8_binary collation in MySQL?

I'm can't find the documentation of MySQL on this topic. Anyone can give some explanations please?
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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 ...
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Unicode support of PostgreSQL and its performance

How is the Unicode support of PostgreSQL? If I want to save Unicode data does it have to go through the conversion process while storing and retrieving? If yes then what is the performance of such ...
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Multiple charsets and Collations for a Multinational Database

After decades of business speaking with companies that adhere to the general Latin1 Collation, my company is facing the issue of storing information in a different charset and collation: Greek. So, ...
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SQL Server 2005 collation issue during installation

Every time I try to install SQL Server 2005 on to a Windows 7 machine it installs properly but the collation installed is sql_latin1_general_as instead of sql_latin1_general_cp1_ci_as. I have read ...
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SQL Server 2008 collation arabic

We are currently having a problem loading arabic into a SQL Server 2008 database. We want to load بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ but in the database it changes to بِسْمِ اللَّهِ ...
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Setting default charset/collation for MySQL database

noob sysadmin here... 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 ...
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Invalid default value for DateTime when changing to utf8_general_ci

I'm trying to run a script to modify a database, this query ALTER TABLE cmContentVersion CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci; gives this error ERROR 1067 (42000) at line 68: ...
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Is there a collation to sort the following strings in the following order 1,2,3,6,10,10A,10B,11?

I have a database with a VARCHAR column that contains integers of varying length. I want to sort them so 10 comes after 9, not 1, and 70A comes after 70. I was able do this with PATINDEX(), a CTE, and ...
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753 views

Casesensitive vs. Caseinsensitive Collatesequences?

I just started working with the SQLite database places.sqlite. Fact is that this database uses case sensitive collate sequences making writing queries as funny as in Oracle. I want to know, are ...
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Dependant T-SQL comparison collation

Is there any way to set the collation for a string comparison based on an independent variable or column value? Something akin to SELECT COL1, col2 FROM [TABLE] WHERE COL3 LIKE '%string%' ...
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How can I extract a lessequal char from SQL_Latin1_General_CP1_CI_AS?

When I create a table like this create table char_test( item varchar(10) collate SQL_Latin1_General_CP1_CI_AS ) go I can store varchars containing ≥ insert into char_test values ('≥'); When ...
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How to change SQL Server collation

How could I change the SQL Server 2008 R2 Express Default Collation for the whole server and a particular database? Is there a way to do it using visual interface of SQL Server Management Studio? In ...
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Which collation should I choose for a muiti-language website?

Does a collation have any influence over a query speed? Does the size of a table change depending of the collation? If I want to build a website that must support all possible languages (lets take ...