mysql -u test_user_pre -ptijh7Z3h test_pre -h 192.168.123.124
mysqldump -u test_user_pre -ptijh7Z3h test_pre systems -h 192.168.123.124 > aaaaa.sql
mysql -u test_user_pre -ptijh7Z3h test_pre -h 192.168.123.125
mysqldump -u test_user_pre -ptijh7Z6h test_pre conference_qa_groups -h 192.168.123.125 > aaaaa.sql
mysqldump -u root -p -d navi > navi_dump
・create文のみ、INSERT文はなし。