Convert all tables to utf8_general_ci

convert_utf8_general_ci.sql

SELECT
	CONCAT( 'ALTER TABLE `', TABLE_NAME, '` CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;' ) AS 'Copy & run these SQL statements:' 
FROM
	INFORMATION_SCHEMA.TABLES 
WHERE
	TABLE_SCHEMA = "database_name" 
	AND TABLE_COLLATION != "utf8_general_ci" 
	AND TABLE_TYPE = "BASE TABLE";