How can I clone a MYSQL database on the same MySQL instance?

Question

I want to create a script that copies my current database sitedb1 to sitedb2 on the same MySQL database instance. I know that I can dump the sitedb1 to a sql script:

mysqldump -u root -p sitedb1 >~/db_name.sql

and finally can import it to sitedb2. Is there any alternative solution for this?

Answer 1

Yes, there are alternative solutions. You can use the "mysqlpump" utility to dump and import databases, excluding sitedb2. Another option is to use "mysqldump" with the "--tab" option to generate separate .sql files for each table. Copy the files and import them into sitedb2. Alternatively, use "mysqldump" with "--single-transaction" and "--no-create-db" options for a direct import. GUI tools like phpMyAdmin or Adminer also offer database copying or syncing functionalities. Ensure you have proper backups before modifying data.

Answer 2

This documentation says  Copying Databases that dump can be piped directly into the mysql client:

mysqldump db_name | mysql new_db_name

In case you use MyISAM you could copy the files, but it is not recommended.

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Answer 3

Variant 1 (Bullet points: 150-200 words):

- Yes, there are alternative solutions to copying the database from sitedb1 to sitedb2 on the same MySQL database instance.

- One alternative solution is to use the MySQL command-line utility called "mysqlpump." This utility allows you to perform logical backups, including the dump and import of databases. You can use the `--exclude-databases` option to exclude sitedb2 from the dump, ensuring it doesn't overwrite the target database. Then, you can import the dump into sitedb2 using the `mysql` command.

- Another solution is to use the "mysqldump" utility with the "mysqldump --tab" option. This option generates a separate .sql file for each table in the database. You can then copy the generated .sql files for sitedb1 to a new directory and import them into sitedb2 using the `mysql` command.

- If you want to avoid generating an intermediate .sql file, you can use the "mysqldump" utility with the `--single-transaction` and `--no-create-db` options. This approach will create a consistent dump of the database and allow you to import it directly into sitedb2 using the `mysql` command.

- Additionally, some database administration tools like phpMyAdmin or Adminer offer GUI interfaces that allow you to perform database copying or syncing operations easily. These tools provide options to select the source and target databases and perform the copy operation within their graphical interface.

- It's important to note that whichever solution you choose, make sure to have proper backups of your databases before performing any operations that may modify or overwrite data.

Answer 4

Yes, alternative solutions include using "mysqlpump" utility, "mysqldump" with "--tab" option, or GUI tools like phpMyAdmin.