Awhile ago I installed MySQL 5.0.37 on my MacBook Pro using the default mysql settings.
Recently I installed Jena SDB 1.1, following the instructions on the wiki.
As part of the install I created a mysql database, specifying utf8, e.g.
mysql> create database sdb-index character set utf8 ;
and set up a store description (named sdb-index.ttl) based on the SDB example, changing it to use mysql and the “layout2/index” layout.
The create command worked fine
SDBROOT > bin/sdbconfig –sdb=sdb-index.ttl –create
but when I ran the testsuite
SDBROOT > bin/sdbtest –sdb=sdb-index.ttl testing/manifest-sdb.ttl
I got the following error in the Unicode-5 test.
Checking out the SDB notes for Mysql it seemed likely that the problem was related to the msyql default character set.
To see what was currently set I ran the “show variables” command below
mysql> show variables like ‘character%’;
+————————–+————————————————————+
| Variable_name | Value |
+————————–+————————————————————+
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/local/mysql-5.0.37-osx10.4-i686/share/mysql/charsets/ |
+————————–+————————————————————+
The SDB notes for Mysql recommends setting default-character-set=utf8. The Mysql documentation seemed to favour setting character-set-server=utf8 and collation-server=utf8_general_ci.
To make the changes I needed to create a config file with the changed settings that mysql reads on startup.
To do this I copied the example config file for small installations to /etc/my.cnf.
cp /usr/local/mysql-5.0.37-osx10.4-i686/support-files/my-small.cnf /etc/my.cnf
In the [mysqld] section of my.cnf I added the lines:
# utf8
init-connect=’SET NAMES utf8′
character-set-server=utf8
collation-server=utf8_general_ci
After restarting mysql the “show variables” command showed the following utf8 updates.
mysql> show variables like ‘character%’;
+————————–+————————————————————+
| Variable_name | Value |
+————————–+————————————————————+
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | latin1 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | /usr/local/mysql-5.0.37-osx10.4-i686/share/mysql/charsets/ |
+————————–+————————————————————+
When I tried it again the SDB testsuite ran without errors.
SDBROOT > bin/sdbtest –sdb=sdb-index.ttl testing/manifest-sdb.ttl