Restore All Mysql Database from a --All-Database Sql. Gz File

I've backed all my mysql databases with he following command

mysqldump -u root -ppasswod --all-databases | gzip > all.sql.gz

just wanted to know will I be able to restore all of the database with following command

gunzip < alldb.sql.gz | mysql -u root -ppassword -h localhost

can you also tell me how to back up all of mysql users too?

I cant test it because I'm not sure and I don't want to break any db on my current system

4 Answers

Yes. Generally, to restore compressed backup files you can do the following:

gunzip < alldb.sql.gz | mysql -u [uname] -p[pass] [dbname]

Please consult How to Back Up and Restore a MySQL Database

Note that the --all-databases option is applicable to backup only. The backup file itself will contain all the relevant CREATE DATABASE quux; commands for the restore.

7

This is the command I use to backup all databases in MySQL:

mysqldump -u USERNAME -p --all-databases --events --ignore-table=mysql.event --extended-insert --add-drop-database --disable-keys --flush-privileges --quick --routines --triggers | gzip > "all_databases.gz"
  • The '--all-databases' option tells the command to include all of the databases. If you want to specify one or more then remove that option and replace it with '--databases dbname1 dbname2 dbnameX'
  • To backup all of your mysql users, passwords, permissions then include the 'mysql' database in your backup. The --all-databases option includes this database in the backup.
  • The '--routines' option includes stored procedures and functions in the backup.
  • The '--triggers' option includes any triggers in the backup.

To restore from a *.gz mysqldump file:

gunzip < all_databases.gz | mysql -u USERNAME -p

To display a progress bar while importing a sql.gz file, download pv and use the following:

pv mydump.sql.gz | gunzip | mysql -u root -p

If PV command is not installed on your system then try below command relatively

In CentOS/RHEL

yum install pv

In Debian/Ubuntu

apt-get install pv

In MAC

brew install pv

Output Something like that -->

pv mydump.sql.gz | gunzip | mysql -u root -p dbname

Enter password:

255MiB 0:05:49 [ 748kiB/s] [===========> ] 30%

3

/applications/MAMP/library/bin/mysql -u root -p < all_dbs2.sql

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David Miller

David Miller

Executive Financial & Market Analyst

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.

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