qfedu-linux-advanced-level/day9/homework/h4.sql

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/*
修改login表的passwd的字段名为auth_string修改person表名为profile_info
*/
-- 修改login表的passwd字段名为auth_string
ALTER TABLE login
CHANGE passwd auth_string VARCHAR(50);
-- 将person表重命名为profile_info
RENAME TABLE person TO profile_info;
-- 显示login表结构查看字段修改结果
DESCRIBE login;
-- 显示bookdb库结构查看表重命名结果
SHOW TABLES;