Delete a schema
Syntax
DROP {DATABASE | SCHEMA}
[IF EXISTS]
database_name
[RESTRICT|CASCADE]Parameters
RESTRICT: If the database contains tables, the DROP operation fails and the system returns an error. RESTRICT is the default logic.
CASCADE: Even if the database contains tables, the DROP operation deletes all tables cascaded in the database.
Example
mysql> show tables;
+----------------------+
| TABLE_NAME |
+----------------------+
| nation_text_string |
| primitives_parquet_p |
+----------------------+
2 rows in set (0.04 sec)
mysql> drop database myfirstdb;
ERROR 18802 (HY000): DropOperationFailedException:Can not drop non-empty database.mysql> drop database myfirstdb cascade;
Query OK, 0 rows affected (0.94 sec)