mysql查看表結構和表創(chuàng)建語命令_MySQL

mysql> desc authors;
+-------+--------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+--------------+------+-----+---------+----------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| email | varchar(100) | NO | UNI | NULL | |
| name | varchar(100) | NO | | NULL | |
+-------+--------------+------+-----+---------+----------------+
3 rows in set

mysql> show create table authors;
+---------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table | Create Table |
+---------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| authors | CREATE TABLE `authors` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `email` varchar(100) NOT NULL,
 `name` varchar(100) NOT NULL,
 PRIMARY KEY (`id`),
 UNIQUE KEY `email` (`email`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 |
+---------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set

mysql> use information_schema;
Database changed
mysql> select * from columns where table_name='authors';
+---------------+--------------+------------+-------------+------------------+----------------+-------------+-----------+--------------------------+------------------------+-------------------+---------------+--------------------+-----------------+--------------+------------+----------------+---------------------------------+----------------+
| TABLE_CATALOG | TABLE_SCHEMA | TABLE_NAME | COLUMN_NAME | ORDINAL_POSITION | COLUMN_DEFAULT | IS_NULLABLE | DATA_TYPE | CHARACTER_MAXIMUM_LENGTH | CHARACTER_OCTET_LENGTH | NUMERIC_PRECISION | NUMERIC_SCALE | CHARACTER_SET_NAME | COLLATION_NAME | COLUMN_TYPE | COLUMN_KEY | EXTRA | PRIVILEGES | COLUMN_COMMENT |
+---------------+--------------+------------+-------------+------------------+----------------+-------------+-----------+--------------------------+------------------------+-------------------+---------------+--------------------+-----------------+--------------+------------+----------------+---------------------------------+----------------+
| def | zqad | authors | id | 1 | NULL | NO | int | NULL | NULL | 10 | 0 | NULL | NULL | int(11) | PRI | auto_increment | select,insert,update,references | |
| def | zqad | authors | email | 2 | NULL | NO | varchar | 100 | 300 | NULL | NULL | utf8 | utf8_general_ci | varchar(100) | UNI | | select,insert,update,references | |
| def | zqad | authors | name | 3 | NULL | NO | varchar | 100 | 300 | NULL | NULL | utf8 | utf8_general_ci | varchar(100) | | | select,insert,update,references | |
+---------------+--------------+------------+-------------+------------------+----------------+-------------+-----------+--------------------------+------------------------+-------------------+---------------+--------------------+-----------------+--------------+------------+----------------+---------------------------------+----------------+
3 rows in set

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