原始表修改
# 原始表新增new_username
ALTER TABLE sys_users CHANGE username new_username VARCHAR(191) CHARACTER SET utf8 COLLATE utf8_bin;
# 原始表修改username
ALTER TABLE sys_users MODIFY username VARCHAR(191) CHARACTER SET utf8 COLLATE utf8_bin;
创建
CREATE TABLE sys_users_new (
id INT,
username VARCHAR(191) CHARACTER SET utf8 COLLATE utf8_bin,
-- 其他字段...
);