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https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-bulk-data-loading.html
Use the multiple-row INSERT syntax to reduce communication overhead between the client and the server if you need to insert many rows: INSERT INTO yourtable VALUES (1,2), (5,5), ...; This tip is valid for inserts into any table, not just InnoDB ...
https://dev.mysql.com/doc/refman/8.0/en/dynamic-format.html
However, if a row becomes larger, it is split into as many pieces as are required, resulting in row fragmentation. A dynamic row is linked whenever an update causes an enlargement of the row. Dynamic storage format is used if a MyISAM table ...You ...
https://dev.mysql.com/doc/refman/8.0/en/full-disk.html
All of these statements may create large temporary files that, if left to themselves, would cause big problems for the rest of the system. This section describes how MySQL responds to disk-full errors (such as “no space left on device”), and to ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-deadlocks.html
A deadlock can occur when transactions lock rows in multiple tables (through statements such as UPDATE or SELECT ... A deadlock is a situation in which multiple transactions are unable to proceed because each transaction holds a lock that is needed ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-transaction-model.html
To implement a large-scale, busy, or highly reliable database application, to port substantial code from a different database system, or to tune MySQL performance, it is important to understand InnoDB locking and the InnoDB transaction model. This ...
https://dev.mysql.com/doc/refman/8.0/en/mysqlcheck.html
If you want to have a tool that repairs tables by default, you should just make a copy of mysqlcheck named mysqlrepair, or make a symbolic link to mysqlcheck named mysqlrepair. If you are using this option to repair tables, it runs an extended ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-columns-list.html
This is a variant of LIST partitioning that enables the use of multiple columns as partition keys, and for columns of data types other than integer types to be used as partitioning columns; you can use string types, DATE, and DATETIME columns. In ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-replication-tables.html
Developers familiar with the Performance Schema interface can extend the replication tables to provide additional information by adding rows to the tables. That is, if the replica_parallel_workers or slave_parallel_workers system variable is greater ...This is similar to the information available from the SHOW REPLICA STATUS statement, but representation in table form is more accessible and has usability benefits: SHOW REPLICA STATUS output is useful for visual inspection, but not so much for programmatic ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-virtual-table.html
A row appears in the INNODB_VIRTUAL table for each column upon which a virtual generated column is based. The value is large because it encodes the column sequence number and ordinal position. The INNODB_VIRTUAL table provides metadata about InnoDB ...
https://dev.mysql.com/doc/refman/8.0/en/miscellaneous-optimization-tips.html
Similarly, if your application computes a single result based on several column values or large volumes of data, combining the computation into a loadable function can help performance. If you have data that does not conform well to a ... This ...