shell> mysqldump db1 > dump.sql
shell> mysqladmin create db2
shell> mysql db2 < dump.sql

Do not use –databases on the mysqldump command line because that causes USE db1 to be included in the dump file, which overrides the effect of naming db2 on the mysql command line.

有的时候root的密码不为空，这个时候我们就需要:

shell> mysqldump -uroot -p db1 > dump.sql

这个我们就可以把db1的表给倒出来了