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Running SQL Queries on the Moodle DatabaseAn overview
18 November 2016
Tools available
• Moodle Adminer• Ad-hoc Database Queries• Configurable Reports • PHP MyAdmin
Moodle Adminer
• The ‘work horse’• SQL in, information out• Aimed at Admins• Powerful for large queries• Slick authoring of queries• Robust browsing of tables
• So what’s the catch?
Moodle Adminer
Great so I can edit the database directly?Technically speaking yes…
Moodle Adminer
Installation and set up
The plugin installs like any other Moodle plugin, in the local folder and can be found at Site Administration > Server
Top Tip: If your Database Server has multiple databases, consider using moodleuser or similar in your config.php(create if needed)
Moodle Adminer
Demo
SELECT fullname, shortname FROM mdl_course ORDER BY fullname ASC
Ad Hoc SQL
Installation and set up
The plugin installs like any other Moodle plugin, in the reports folder and can be found at Site Administration > Reports
Ad Hoc SQL
• Write once, run many• Great for delegating running of queries to curriculum
managers• Not 100% foolproof• Elegant• Easy to use• Timer and Email utilisation
Ad Hoc SQL
Configurable Reports
• Very user friendly• Elegantly formatted output• Can be applied at course level as a block
Configurable Reports
Installation and set up
The plugin installs like any other Moodle plugin, in the block folder and can be added at course level
PHP My Admin
Installation and set up
Installed as a fully fledged application at server level.
Managing the Databases
Dumps
We do this through command line
mysqldump –u root –p –h localhost moodle > dump.sql
-v (verbose mode)
Managing the Databases
Find and Replace
We do this through command line, but the replace tool is also useful
sed –i ‘s/moodle.westcollegescotland.ac.uk/moodle14.westcollegescotland.ac.uk/g’ ./dump.sql
(sed is a Linux tool)
Managing the Databases
Managing the Databases
Imports
We do this through command line too
mysql –u root –p –h localhost moodle < dump.sql
-v (verbose mode)