Show databases, tables and columns present in MYSQL

Show Databases present in MySQL

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| database           |
| information_schema |
| mysql              |
| performance_schema |
| sakila             |
| sys                |
| world              |
| world_bkp          |
+--------------------+
8 rows in set (0.00 sec)

Check list of tables present in World database:

mysql> use world;
Database changed
mysql> show tables;
+-----------------+
| Tables_in_world |
+-----------------+
| city            |
| country         |
| countrylanguage |
+-----------------+
3 rows in set (0.02 sec)

Check columns present in table City

mysql> desc city;
+-------------+----------+------+-----+---------+----------------+
| Field       | Type     | Null | Key | Default | Extra          |
+-------------+----------+------+-----+---------+----------------+
| ID          | int      | NO   | PRI | NULL    | auto_increment |
| Name        | char(35) | NO   |     |         |                |
| CountryCode | char(3)  | NO   | MUL |         |                |
| District    | char(20) | NO   |     |         |                |
| Population  | int      | NO   |     | 0       |                |
+-------------+----------+------+-----+---------+----------------+
5 rows in set (0.02 sec)