Posts Tagged With: database

Database Data to Download Variables

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Gets data from a MySql database, splits the data into separate columns, then uses one column in a URL to download something – and uses other column to name the file thats downloaded

for i in $(mysql -u root Project_Madapp -sNe 'SELECT CONCAT(id,",",name) AS yo FROM City WHERE type="actual"'); do parts=(${i//,/ }); wget -O "${parts[1]}.csv" "http://localhost/student_allocation_csv.php?format=csv&city_id=${parts[0]}"; done

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Import All MySQL Sql Dumps in a Folder

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This command will import all the MySQL sql dumps in the current folder. You can use this to restore your backuped databases.


for i in *; do mysql -uroot `basename $i .sql` < $i;  done
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Backup All Databases in MySQL

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Backup all files in /var/lib/mysql to another folder

To restore, stop mysqld if it is running

service stop mysqld

Move all database files back to /var/lib/mysql. Make sure that all the folder and files in that folder belongs to mysql

chown -R mysql.mysql /var/lib/mysql

Try starting mysql

service start mysqld

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MySQL Database Backup/Restore

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This command can be used to backup MySQL database.

mysqldump -u <User> -p <Database name> [<Table name>] > backup.sql

This command will create a file ‘backup.sql’ that will have all the data of the Database. The <Table name> is optional.

The database can be restored from such a dump using the command

mysql -u <User> <Database name> < backup.sql

Example

I backup all the task in Nexty using this command.

mysqldump -u root Apps_Nexty > nexty.sql

This will create a file called ‘nexty.sql’ – which can be restored using the command…

mysql -u root Apps_nexty < nexty.sql

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