说明 / 示例
字符修正
t_bill_mainarea_htl_def_001
alter table `t_bill_mainarea_htl_def_001` convert to character set utf8
ALTER TABLE `t_bill_mainarea_htl_def_001` CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
https://www.cnblogs.com/youjianjiangnan/p/9114791.html