1DROP DATABASE IF EXISTS d5; 2CREATE DATABASE d5; 3SHOW DATABASES; 4Database 5d5 6information_schema 7mtr 8mysql 9performance_schema 10sys 11test 12DROP DATABASE nond5; 13ERROR HY000: Can't drop database 'nond5'; database doesn't exist 14DROP DATABASE d5; 15SHOW DATABASES; 16Database 17information_schema 18mtr 19mysql 20performance_schema 21sys 22test 23