####FIND_IN_SET
select * from repositories
where FIND_IN_SET("keyword", tags)
####Case Sensitive
select * from table where content LIKE BINARY'%SEARCH%';
####OS X : mySql cmd
sudo /usr/local/mysql/support-files/mysql.server start
sudo /usr/local/mysql/support-files/mysql.server stop
sudo /usr/local/mysql/support-files/mysql.server restart