How to Install MariaDB on Raspberry Pi?

asked in Raspberry Pi by administrator

Install MariaDB server

As said in the introduction, MariaDB is available in the Raspberry Pi OS repository, so the installation is straightforward. Open a terminal (or connect via SSH) and follow the instructions:

As always, start by updating your system:
sudo apt update sudo apt upgrade

Then you can install MariaDB with this command:

sudo apt install mariadb-server

Type “Y” and Enter to continue.
After a few seconds, the installation process is complete and MariaDB is almost ready to use.

If you’ve noticed it, the installation of MariaDB has also installed the MariaDB client.
This will allow you to connect from the command line with:
mysql

Root access

Here is how to define the password for the root user and start to use MariaDB:

Enter this command:
sudo mysql_secure_installation

Press enter to continue (no password by default).
Press “Y” to switch to unix_socket authentication.
Then type “Y” to set a new password, and enter the password of your choice.
Now, press “Y” three more times
Remove anonymous users.
Disallow root login remotely.
Remove the test database.
And finally, press “Y” again to reload the privileges.

Your answer

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	Total		PHP			MySQL			Other		RAM
	Time (ms)	%	Time (ms)	%	File count	Time (ms)	%	Query count	Time (ms)	%	Amount	%
Setup	21.1	13%	14.3	9%	19	6.6	4%	2	0.1	0%	111k	47%
Control	77.1	49%	21.6	13%	10	62.8	40%	12	0.0	0%	35k	15%
View	25.6	16%	22.9	14%	20	1.8	1%	1	0.9	0%	40k	17%
Theme	15.5	9%	15.5	9%	2	0.0	0%	0	0.0	0%	40k	17%
Stats	15.6	10%	1.8	1%	0	14.6	9%	2	0.0	0%	4k	1%
Total	155.0	100%	76.3	49%	51	85.8	55%	17	0.0	0%	233k	100%

www/html/index.php
html/qa-include/qa-index.php
html/qa-include/qa-base.php
www/html/qa-config.php
qa-include/vendor/password_compat.php
Q2A/Util/Usage.php
Q2A/Plugin/PluginManager.php
Q2A/Util/Metadata.php
qa-plugin/event-logger/qa-plugin.php
qa-plugin/qa-auto-post/qa-plugin.php
qa-plugin/wysiwyg-editor/qa-plugin.php
html/qa-include/qa-db.php
html/qa-include/qa-page.php
qa-include/app/page.php
qa-include/app/cookies.php
qa-include/app/format.php
qa-include/app/users.php
qa-include/app/options.php
qa-include/db/options.php
qa-include/db/selects.php
qa-include/db/maxima.php
qa-plugin/basic-adsense/qa-plugin.php
qa-plugin/mouseover-layer/qa-plugin.php
qa-plugin/q2a-recaptcha-v3-master/qa-plugin.php
qa-plugin/xml-sitemap/qa-plugin.php
qa-include/pages/question.php
qa-include/util/sort.php
qa-include/util/string.php
qa-include/app/captcha.php
qa-include/pages/question-view.php
qa-include/app/updates.php
Q2A/Storage/CacheFactory.php
Q2A/Storage/FileCacheDriver.php
Q2A/Storage/CacheDriver.php
qa-include/app/limits.php
qa-include/lang/qa-lang-main.php
qa-include/plugins/qa-widget-category-list.php
qa-plugin/basic-adsense/qa-basic-adsense.php
qa-include/plugins/qa-widget-activity-count.php
qa-include/app/posts.php
qa-include/app/post-create.php
qa-include/db/post-create.php
qa-include/db/points.php
qa-include/db/hotness.php
qa-include/app/post-update.php
qa-include/db/post-update.php
qa-include/plugins/qa-viewer-basic.php
qa-include/vendor/htmLawed.php
qa-include/lang/qa-lang-users.php
qa-include/lang/qa-lang-question.php
qa-plugin/wysiwyg-editor/qa-wysiwyg-editor.php
qa-include/lang/qa-lang-misc.php
q2a-recaptcha-v3-master/src/qa-recaptcha-captcha.php
q2a-recaptcha-v3-master/src/admin-form.php
q2a-recaptcha-v3-master/src/user-verifier.php
html/qa-include/qa-theme-base.php
qa-theme/SnowFlat/qa-theme.php

SELECT title, content FROM qa_options

5.42 ms - 340 rows - 2 columns

SELECT 'db_time' AS `title`, UNIX_TIMESTAMP(NOW()) AS `content`

1.22 ms - 1 row - 2 columns

SELECT qa_posts.postid, qa_posts.categoryid, qa_posts.type, LEFT(qa_posts.type, 1) AS `basetype`, INSTR(qa_posts.type, '_HIDDEN')>0 AS `hidden`, INSTR(qa_posts.type, '_QUEUED')>0 AS `queued`, qa_posts.acount, qa_posts.amaxvote, qa_posts.selchildid, qa_posts.closedbyid, qa_posts.upvotes, qa_posts.downvotes, qa_posts.netvotes, qa_posts.views, qa_posts.hotness, qa_posts.flagcount, qa_posts.title, qa_posts.tags, UNIX_TIMESTAMP(qa_posts.created) AS `created`, qa_posts.name, qa_categories.title AS `categoryname`, qa_categories.backpath AS `categorybackpath`, CONCAT_WS(',', qa_posts.catidpath1, qa_posts.catidpath2, qa_posts.catidpath3, qa_posts.categoryid) AS `categoryids`, qa_posts.content AS `content`, qa_posts.notify AS `notify`, UNIX_TIMESTAMP(qa_posts.updated) AS `updated`, qa_posts.updatetype AS `updatetype`, qa_posts.format, qa_posts.lastuserid, qa_posts.lastip AS `lastip`, qa_posts.parentid, qa_posts.lastviewip AS `lastviewip`, qa_posts.userid, qa_posts.cookieid, qa_posts.createip AS `createip`, qa_userpoints.points, qa_users.flags, qa_users.level, qa_users.email AS `email`, qa_users.handle AS `handle`, BINARY qa_users.avatarblobid AS `avatarblobid`, qa_users.avatarwidth, qa_users.avatarheight, lastusers.handle AS `lasthandle` FROM qa_posts LEFT JOIN qa_categories ON qa_categories.categoryid=qa_posts.categoryid LEFT JOIN qa_users ON qa_posts.userid=qa_users.userid LEFT JOIN qa_users AS lastusers ON qa_posts.lastuserid=lastusers.userid LEFT JOIN qa_userpoints ON qa_posts.userid=qa_userpoints.userid WHERE qa_posts.postid=66

5.23 ms - 1 row - 44 columns

SELECT qa_posts.postid, qa_posts.categoryid, qa_posts.type, LEFT(qa_posts.type, 1) AS `basetype`, INSTR(qa_posts.type, '_HIDDEN')>0 AS `hidden`, INSTR(qa_posts.type, '_QUEUED')>0 AS `queued`, qa_posts.acount, qa_posts.amaxvote, qa_posts.selchildid, qa_posts.closedbyid, qa_posts.upvotes, qa_posts.downvotes, qa_posts.netvotes, qa_posts.views, qa_posts.hotness, qa_posts.flagcount, qa_posts.title, qa_posts.tags, UNIX_TIMESTAMP(qa_posts.created) AS `created`, qa_posts.name, qa_categories.title AS `categoryname`, qa_categories.backpath AS `categorybackpath`, CONCAT_WS(',', qa_posts.catidpath1, qa_posts.catidpath2, qa_posts.catidpath3, qa_posts.categoryid) AS `categoryids`, qa_posts.content AS `content`, qa_posts.notify AS `notify`, UNIX_TIMESTAMP(qa_posts.updated) AS `updated`, qa_posts.updatetype AS `updatetype`, qa_posts.format, qa_posts.lastuserid, qa_posts.lastip AS `lastip`, qa_posts.parentid, qa_posts.lastviewip AS `lastviewip`, qa_posts.userid, qa_posts.cookieid, qa_posts.createip AS `createip`, qa_userpoints.points, qa_users.flags, qa_users.level, qa_users.email AS `email`, qa_users.handle AS `handle`, BINARY qa_users.avatarblobid AS `avatarblobid`, qa_users.avatarwidth, qa_users.avatarheight, lastusers.handle AS `lasthandle` FROM qa_posts LEFT JOIN qa_categories ON qa_categories.categoryid=qa_posts.categoryid LEFT JOIN qa_users ON qa_posts.userid=qa_users.userid LEFT JOIN qa_users AS lastusers ON qa_posts.lastuserid=lastusers.userid LEFT JOIN qa_userpoints ON qa_posts.userid=qa_userpoints.userid WHERE qa_posts.parentid=66

5.42 ms - 0 rows - 44 columns

SELECT qa_posts.postid, qa_posts.categoryid, qa_posts.type, LEFT(qa_posts.type, 1) AS `basetype`, INSTR(qa_posts.type, '_HIDDEN')>0 AS `hidden`, INSTR(qa_posts.type, '_QUEUED')>0 AS `queued`, qa_posts.acount, qa_posts.amaxvote, qa_posts.selchildid, qa_posts.closedbyid, qa_posts.upvotes, qa_posts.downvotes, qa_posts.netvotes, qa_posts.views, qa_posts.hotness, qa_posts.flagcount, qa_posts.title, qa_posts.tags, UNIX_TIMESTAMP(qa_posts.created) AS `created`, qa_posts.name, qa_categories.title AS `categoryname`, qa_categories.backpath AS `categorybackpath`, CONCAT_WS(',', qa_posts.catidpath1, qa_posts.catidpath2, qa_posts.catidpath3, qa_posts.categoryid) AS `categoryids`, qa_posts.content AS `content`, qa_posts.notify AS `notify`, UNIX_TIMESTAMP(qa_posts.updated) AS `updated`, qa_posts.updatetype AS `updatetype`, qa_posts.format, qa_posts.lastuserid, qa_posts.lastip AS `lastip`, qa_posts.parentid, qa_posts.lastviewip AS `lastviewip`, qa_posts.userid, qa_posts.cookieid, qa_posts.createip AS `createip`, qa_userpoints.points, qa_users.flags, qa_users.level, qa_users.email AS `email`, qa_users.handle AS `handle`, BINARY qa_users.avatarblobid AS `avatarblobid`, qa_users.avatarwidth, qa_users.avatarheight, lastusers.handle AS `lasthandle` FROM qa_posts LEFT JOIN qa_categories ON qa_categories.categoryid=qa_posts.categoryid LEFT JOIN qa_users ON qa_posts.userid=qa_users.userid LEFT JOIN qa_users AS lastusers ON qa_posts.lastuserid=lastusers.userid LEFT JOIN qa_userpoints ON qa_posts.userid=qa_userpoints.userid JOIN qa_posts AS parents ON qa_posts.parentid=parents.postid WHERE parents.parentid=66 AND LEFT(parents.type, 1)='A'

6.50 ms - 0 rows - 44 columns

SELECT qa_posts.postid, qa_posts.categoryid, qa_posts.type, LEFT(qa_posts.type, 1) AS `basetype`, INSTR(qa_posts.type, '_HIDDEN')>0 AS `hidden`, INSTR(qa_posts.type, '_QUEUED')>0 AS `queued`, qa_posts.acount, qa_posts.amaxvote, qa_posts.selchildid, qa_posts.closedbyid, qa_posts.upvotes, qa_posts.downvotes, qa_posts.netvotes, qa_posts.views, qa_posts.hotness, qa_posts.flagcount, qa_posts.title, qa_posts.tags, UNIX_TIMESTAMP(qa_posts.created) AS `created`, qa_posts.name, qa_categories.title AS `categoryname`, qa_categories.backpath AS `categorybackpath`, CONCAT_WS(',', qa_posts.catidpath1, qa_posts.catidpath2, qa_posts.catidpath3, qa_posts.categoryid) AS `categoryids`, qa_posts.userid, qa_posts.cookieid, qa_posts.createip AS `createip`, qa_userpoints.points, qa_users.flags, qa_users.level, qa_users.email AS `email`, qa_users.handle AS `handle`, BINARY qa_users.avatarblobid AS `avatarblobid`, qa_users.avatarwidth, qa_users.avatarheight FROM qa_posts LEFT JOIN qa_categories ON qa_categories.categoryid=qa_posts.categoryid LEFT JOIN qa_users ON qa_posts.userid=qa_users.userid LEFT JOIN qa_userpoints ON qa_posts.userid=qa_userpoints.userid WHERE qa_posts.postid=(SELECT IF(LEFT(parent.type, 1)='A', parent.parentid, parent.postid) FROM qa_posts AS child LEFT JOIN qa_posts AS parent ON parent.postid=child.parentid WHERE child.postid=66 AND parent.type IN('Q','A'))

6.26 ms - 0 rows - 34 columns

SELECT qa_posts.postid, qa_posts.categoryid, qa_posts.type, LEFT(qa_posts.type, 1) AS `basetype`, INSTR(qa_posts.type, '_HIDDEN')>0 AS `hidden`, INSTR(qa_posts.type, '_QUEUED')>0 AS `queued`, qa_posts.acount, qa_posts.amaxvote, qa_posts.selchildid, qa_posts.closedbyid, qa_posts.upvotes, qa_posts.downvotes, qa_posts.netvotes, qa_posts.views, qa_posts.hotness, qa_posts.flagcount, qa_posts.title, qa_posts.tags, UNIX_TIMESTAMP(qa_posts.created) AS `created`, qa_posts.name, qa_categories.title AS `categoryname`, qa_categories.backpath AS `categorybackpath`, CONCAT_WS(',', qa_posts.catidpath1, qa_posts.catidpath2, qa_posts.catidpath3, qa_posts.categoryid) AS `categoryids`, qa_posts.content AS `content`, qa_posts.notify AS `notify`, UNIX_TIMESTAMP(qa_posts.updated) AS `updated`, qa_posts.updatetype AS `updatetype`, qa_posts.format, qa_posts.lastuserid, qa_posts.lastip AS `lastip`, qa_posts.parentid, qa_posts.lastviewip AS `lastviewip`, qa_posts.userid, qa_posts.cookieid, qa_posts.createip AS `createip`, qa_userpoints.points, qa_users.flags, qa_users.level, qa_users.email AS `email`, qa_users.handle AS `handle`, BINARY qa_users.avatarblobid AS `avatarblobid`, qa_users.avatarwidth, qa_users.avatarheight, lastusers.handle AS `lasthandle` FROM qa_posts LEFT JOIN qa_categories ON qa_categories.categoryid=qa_posts.categoryid LEFT JOIN qa_users ON qa_posts.userid=qa_users.userid LEFT JOIN qa_users AS lastusers ON qa_posts.lastuserid=lastusers.userid LEFT JOIN qa_userpoints ON qa_posts.userid=qa_userpoints.userid WHERE qa_posts.postid=(SELECT closedbyid FROM qa_posts WHERE postid=66)

6.47 ms - 0 rows - 44 columns

SELECT qa_posts.postid, qa_posts.categoryid, qa_posts.type, LEFT(qa_posts.type, 1) AS `basetype`, INSTR(qa_posts.type, '_HIDDEN')>0 AS `hidden`, INSTR(qa_posts.type, '_QUEUED')>0 AS `queued`, qa_posts.acount, qa_posts.amaxvote, qa_posts.selchildid, qa_posts.closedbyid, qa_posts.upvotes, qa_posts.downvotes, qa_posts.netvotes, qa_posts.views, qa_posts.hotness, qa_posts.flagcount, qa_posts.title, qa_posts.tags, UNIX_TIMESTAMP(qa_posts.created) AS `created`, qa_posts.name, qa_categories.title AS `categoryname`, qa_categories.backpath AS `categorybackpath`, CONCAT_WS(',', qa_posts.catidpath1, qa_posts.catidpath2, qa_posts.catidpath3, qa_posts.categoryid) AS `categoryids`, qa_posts.content AS `content`, qa_posts.notify AS `notify`, UNIX_TIMESTAMP(qa_posts.updated) AS `updated`, qa_posts.updatetype AS `updatetype`, qa_posts.format, qa_posts.lastuserid, qa_posts.lastip AS `lastip`, qa_posts.parentid, qa_posts.lastviewip AS `lastviewip`, qa_posts.userid, qa_posts.cookieid, qa_posts.createip AS `createip`, qa_userpoints.points, qa_users.flags, qa_users.level, qa_users.email AS `email`, qa_users.handle AS `handle`, BINARY qa_users.avatarblobid AS `avatarblobid`, qa_users.avatarwidth, qa_users.avatarheight, lastusers.handle AS `lasthandle` FROM qa_posts LEFT JOIN qa_categories ON qa_categories.categoryid=qa_posts.categoryid LEFT JOIN qa_users ON qa_posts.userid=qa_users.userid LEFT JOIN qa_users AS lastusers ON qa_posts.lastuserid=lastusers.userid LEFT JOIN qa_userpoints ON qa_posts.userid=qa_userpoints.userid WHERE qa_posts.closedbyid=66

13.73 ms - 0 rows - 44 columns

SELECT title, content FROM qa_postmetas WHERE postid=66 AND title='qa_q_extra'

1.99 ms - 0 rows - 2 columns

SELECT qa_categories.categoryid, MAX(qa_categories.parentid) AS `parentid`, MAX(qa_categories.title) AS `title`, MAX(qa_categories.tags) AS `tags`, MAX(qa_categories.qcount) AS `qcount`, MAX(qa_categories.position) AS `position`, COUNT(child.categoryid) AS `childcount`, MAX(qa_categories.content) AS `content`, MAX(qa_categories.backpath) AS `backpath` FROM qa_categories JOIN (SELECT NULL AS parentkey UNION SELECT grandparent.parentid FROM qa_categories JOIN qa_categories AS parent ON qa_categories.parentid=parent.categoryid JOIN qa_categories AS grandparent ON parent.parentid=grandparent.categoryid WHERE qa_categories.categoryid=(SELECT categoryid FROM qa_posts WHERE postid=66) UNION SELECT parent.parentid FROM qa_categories JOIN qa_categories AS parent ON qa_categories.parentid=parent.categoryid WHERE qa_categories.categoryid=(SELECT categoryid FROM qa_posts WHERE postid=66) UNION SELECT parentid FROM qa_categories WHERE categoryid=(SELECT categoryid FROM qa_posts WHERE postid=66) UNION SELECT categoryid FROM qa_categories WHERE categoryid=(SELECT categoryid FROM qa_posts WHERE postid=66)) y ON qa_categories.parentid<=>parentkey LEFT JOIN qa_categories AS child ON child.parentid=qa_categories.categoryid GROUP BY qa_categories.categoryid ORDER BY qa_categories.position

9.27 ms - 3 rows - 9 columns

SELECT action, period, count FROM qa_iplimits WHERE ip=UNHEX('12756ace')

2.24 ms - 0 rows - 3 columns

SELECT pageid, title, flags, permit+0 AS `permit`, nav, tags, position, heading FROM qa_pages WHERE nav IN ('B','M','O','F') ORDER BY position

2.12 ms - 0 rows - 8 columns

SELECT widgetid, place, position, tags, title FROM qa_widgets ORDER BY position

2.02 ms - 5 rows - 5 columns

SELECT entityid, entitytype, level FROM qa_userlevels WHERE userid=NULL

1.54 ms - 0 rows - 3 columns

SELECT action, period, count FROM qa_userlimits WHERE userid=NULL

1.85 ms - 0 rows - 3 columns

UPDATE qa_posts SET views=views+1, lastviewip=UNHEX('12756ace') WHERE postid=66 AND (lastviewip IS NULL OR lastviewip!=UNHEX('12756ace'))

5.69 ms

UPDATE qa_posts AS x, (SELECT parents.postid, MAX(parents.created) AS qcreated, COALESCE(MAX(children.created), MAX(parents.created)) as acreated, COUNT(children.postid) AS acount, MAX(parents.netvotes) AS netvotes, MAX(parents.views) AS views FROM qa_posts AS parents LEFT JOIN qa_posts AS children ON parents.postid=children.parentid AND children.type='A' WHERE parents.postid BETWEEN 66 AND 66 GROUP BY postid) AS a SET x.hotness=(((TO_DAYS(a.qcreated)-734138)*86400.0+TIME_TO_SEC(a.qcreated))*100 + ((TO_DAYS(a.acreated)-734138)*86400.0+TIME_TO_SEC(a.acreated))*100 + (a.acount+0.0)*16000000 + (a.netvotes+0.0)*16000000 + (a.views+0.0)*400000) WHERE x.postid=a.postid

8.87 ms