Where are the advanced tutorials for mysql? Want to know something about indexes, locks and so on?

ask God for advice on which books to read?
it"s best to have video tutorials. Ask for recommendations. There are too many basics on the Internet

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Mar.21,2021

"High performance mysql" should be able to help you

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e4c8f1-44ebc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e4c8f1-44ebc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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