我需要,最狂的风,和最静的海。——顾城《世界和我·第八个早晨》
首先是查看字符集格式
show variables where variable_name like '%character%'
然后是存储过程,用于修改表内所有字段的字符集
DROP PROCEDURE IF EXISTS addColumn; DELIMITER $$ CREATE PROCEDURE addColumn () BEGIN -- 定义表名变量 DECLARE s_tablename VARCHAR ( 100 ); /*显示表的数据库中的所有表 SELECT table_name FROM information_schema.tables WHERE table_schema='databasename' Order by table_name ; */#显示所有 DECLARE cur_table_structure CURSOR FOR SELECT table_name FROM INFORMATION_SCHEMA.TABLES -- databasename = 数据库名称 WHERE table_schema = '数据库名称' -- 这里可以加表名前缀条件 AND table_name LIKE 'tb_%' AND table_name NOT IN ( SELECT t.table_name FROM ( SELECT table_name, column_name FROM information_schema.COLUMNS WHERE table_name IN ( SELECT table_name FROM INFORMATION_SCHEMA.TABLES WHERE table_schema = '数据库名称' ) ) t WHERE t.column_name = 'object_name' ); DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET s_tablename = NULL; OPEN cur_table_structure; FETCH cur_table_structure INTO s_tablename; WHILE ( s_tablename IS NOT NULL ) DO SET @MyQuery = CONCAT( "alter table `", s_tablename, "`CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci" ); PREPARE MSQL FROM @MyQuery; EXECUTE MSQL;#USING @c; FETCH cur_table_structure INTO s_tablename; END WHILE; CLOSE cur_table_structure; END; $$ #执行存储过程 CALL addColumn ();
然后还可以修改mysql
配置文件
[mysqld] character_set_server = utf8