分别是：
show create database dbname;show create table tbname;示例：
zsh >> mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 329Server version: 5.5.34-0ubuntu0.13.04.1 (Ubuntu)Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> show create database test;+----------+---------------------------------------------------------------+| Database | Create Database |+----------+---------------------------------------------------------------+| test | CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET utf8 */ |+----------+---------------------------------------------------------------+1 row in set (0.00 sec)mysql> use testReading table information for completion of table and column namesYou can turn off this feature to get a quicker startup with -ADatabase changedmysql> show create table user;+-------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+| Table | Create Table |+-------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+| user | CREATE TABLE `user` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` text, `email` varchar(1) DEFAULT NULL, `password` text, PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8 |+-------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+1 row in set (0.00 sec)