Syntax
------

{DESCRIBE | DESC} tbl_name [col_name | wild]

Description
-----------

DESCRIBE provides information about the columns in a table. It is a shortcut
for SHOW COLUMNS FROM. These statements also display information for views.

col_name can be a column name, or a string containing the SQL "%" and "_"
wildcard characters to obtain output only for the columns with names matching
the string. There is no need to enclose the string within quotes unless it
contains spaces or other special characters.

DESCRIBE city;
+------------+----------+------+-----+---------+----------------+
| Field      | Type     | Null | Key | Default | Extra          |
+------------+----------+------+-----+---------+----------------+
| Id         | int(11)  | NO   | PRI | NULL    | auto_increment |
| Name       | char(35) | YES  |     | NULL    |                |
| Country    | char(3)  | NO   | UNI |         |                |
| District   | char(20) | YES  | MUL |         |                |
| Population | int(11)  | YES  |     | NULL    |                |
+------------+----------+------+-----+---------+----------------+

The description for SHOW COLUMNS provides more information about the output
columns.

URL: https://mariadb.com/kb/en/describe/