So, I have some kind of records in my database that should be deleted after 24 hours. How do I make my MySQL database to update itself? Is this even possible? Thanks
You can write cron jobs for that.
In linux you can use crontab for that documentation
On Windows you can set cron jobs like this
0 0 * * * mysql -u USER -pPASSWORD -h HOST DATABASE < path/to/sql/script
look into man crontab
Related
I'm using ubuntu 16.04 with nginx installed, currently i run daily backup using cron like this:
#crontab -u root -e
0 2 * * * mysqldump -u username -p"password" production | gzip -c > production.gz
this will backup my database everydate at 2am, the problem here is i need to backup database based on day name, so the backup database name will be suited based on dayname, for example the file name will look like this:
production_monday.gz
production_tuesday.gz
production_wednesday.gz
production_thursday.gz
production_friday.gz
production_saturday.gz
production_sunday.gz
how can i set the cron to produce the file like above ? cron schedule will auto rewrite the file based on the day name
My suggestion would be to create a shell script that finds the current day of the week (date +%A), then write the mysqldump output to a file formatted as "prefix"_"dayofweek" for you to zip. Then from cron, just execute this shell script rather than the mysqldump directly.
You may also find this answer helpful.
I wish to create a demo mode for my CMS and is there anyway with which I can set my MySQL database automatically reset after 1 hour of time.
If you have access to the hosting console, you need a database running with the initial data set. Only once, you need to get a database dump in a file:
mysqldump -u DBUSER -pDBPASS --opt DBNAME > /path/to/my/backup.sql
Then, create a cron job (run crontab -e) to run a database restore using your dump file (see http://www.adminschoice.com/crontab-quick-reference for more information about cron tabs)
mysql -u DBUSER -pDBPASS DBNAME < /path/to/my/backup.sql
For example:
# crontab -e
00 * * * * mysql -u root -p123456 demo < /path/to/my/demo_backup.sql
This will restore your database to the original state every hour (minute 00)
Note: You need to consider, also, that if some user is actually trying your demo and the database is running the reset process, the user data will be lost in the middle of the session.
How can I create a MySql Job that runs daily to generate a database backup and stores in on the server?
Also How can I create a second Job that does a maintenance on the database to keep it running without problem?
Thanks
one possible way is run the following as daily cron.
mysqldump -u <db_user> -p <db_password> <db_name> -h <db_host_if_any> > /home/backups/backup_<timestamp>.sql
gzip it and store it(just a mechanism to reduce size)
gzip /home/backup/backup_<timestamp>.sql
hey I am newbie to scripting in linux.I want to take a sqldump of my database every hour, I have gone thorough couple of blogs i was able to write a script which will take the dump of my database but I do I make it run every hour in the crontab.
Kindly help me out.
Set up a crontab entry like this:
0 * * * * /usr/bin/mysqldump --user=sqluser --password=sqlpass -A > /tmp/database.sql
This will run the command /usr/bin/mysqldump --user=sqluser --password=sqlpass -A > /tmp/database.sql on the hour, every hour. This will dump all database schemas into the file /tmp/database.sql (adjust as required for your setup) using the username sqluser and the password sqlpass (again, adjust for your setup)
For more information about crontab syntax, you can refer to this page
How to do automatic mysql db backup using mysql workbench?
Is it possible?
Mysql bench is not required for automatic backup,
setup a crontab and use mysqldump (or equivalent) will do the same job and is easier.
example:
crontab -e
/* backup every day at 00:00:00 */
0 0 * * * mysqldump -u root -ppassword YOUR_DATABASE > /backup/YOUR_DATABASE.sql
If you have a webserver with PHP I'd suggest MySqlDumper
It supports:
Automatic backups
Emails backups
Compresses backups
Rotates backups
etc.
ATM scheduled backups are not plannned in Workbench:
http://bugs.mysql.com/bug.php?id=50074
At the same time Workbench is designed to have powerful scripting shell, so you can try to
investigate what commands can be used for backup and call them directly from shell.
(But I agree this is too general idea):
http://dev.mysql.com/doc/workbench/en/wb-extending.html