问题
Is there any way to copy database structure without data in MySQL, so the new database will be the same as it is copied from, but with empty tables.
After getting some suggestions I tried the command, but I am getting syntax error, my username = root and password = nothing. I guess the default one. I am trying following command,
mysqldump -u root -p -d xyz_db | mysql -u root -p -Dnew_db
what I am missing or misplacing in command?
回答1:
mysqldump -u user -ppass -d olddb | mysql -u user -ppass -D newdb
The new database must already exist. The -d flag in the mysqldump command prevents copying of data.
There's no space between the flag -p and the password.
回答2:
You can take backup using mysqldump and restore with mysql using commandline.
For backup database
$ mysqldump -u root-pPassword -P3309 --routines --no-data testdb > "d:\dbwithnodata.sql"
For restoration of database
$ mysql -u root-pPassword -P3309 newdb < "d:\dbwithnodata.sql"
回答3:
You can backup you MYSQL database structure with
mysqldump -u username –p -d database_name > backup.sql
(You should not supply password at command line as it leads to security risks.MYSQL will ask for password by default.) And you can create create tables in database with
mysql -u username -p new_database < backup.sql
Now you can use pipe to give the output of first command as output for second one and you will no longer need backup.sql
mysqldump -u username –p -d database_name|mysql -u username -p new_database
All tables in will be created in new_database without data.
回答4:
Try this one:
$ mysqldump --no-data -h localhost -u root -p database_name > imported_db_name.sql
回答5:
From electrictboolbox.com/mysqldump-schema-only:
Dumping the database structure for all tables with no data Add the -d flag to signify that no data should be included in the output like so, where "mydatabase" is the name of the database to dump, and "someuser" is the login name used to connect to the database. The following command will dump the table structure for all tables in the specified MySQL database:
$ mysqldump -d -u someuser -p mydatabase
The -d flag says not to include data in the dump. Alternatively you can use --no-data instead if you find that easier to remember:
$ mysqldump --no-data -u someuser -p mydatabase
The -u flag indicates the username and the -p flag that a password will be supplied. After pressing you will be prompted for the password.
Alternatively, the password can be supplied on the command line, but there must be no space between the -p flag and the password. For example, if the password was "apples" do this:
$ mysqldump --no-data -u someuser -papples mydatabase
$ mysqldump -d -u someuser -p mydatabase > mydatabase.sql # This will output to a sql file
来源：https://stackoverflow.com/questions/14107919/copy-database-structure-without-data-in-mysql-with-empty-tables