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https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-operations-per-fragment.html
The operations_per_fragment table provides information about the operations performed on individual fragments and fragment replicas, as well as about some of the results from these operations. This currently has the following formats: Base table: ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-options-variables.html
This section provides information about MySQL server options, server and status variables that are specific to NDB Cluster. For general information on using these, and for other options and variables not specific to NDB Cluster, see Section 7.1, ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-bulk-data-loading.html
These performance tips supplement the general guidelines for fast inserts in Section 10.2.5.1, “Optimizing INSERT Statements”. When importing data into InnoDB, turn off autocommit mode, because it performs a log flush to disk for every insert.
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-firewall-groups-table.html
The firewall_groups table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It lists names and operational modes of registered firewall group profiles. It is used in conjunction with the mysql.firewall_groups system table ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-timing.html
Events are collected by means of instrumentation added to the server source code. Instruments time events, which is how the Performance Schema provides an idea of how long events take. It is also possible to configure instruments not to collect ...
https://dev.mysql.com/doc/refman/8.0/en/precision-math-expressions.html
With precision math, exact-value numbers are used as given whenever possible. For example, numbers in comparisons are used exactly as given without a change in value. In strict SQL mode, for INSERT into a column with an exact data type (DECIMAL or ...
https://dev.mysql.com/doc/refman/8.0/en/rename-table.html
RENAME TABLE tbl_name TO new_tbl_name [, tbl_name2 TO new_tbl_name2] ... You must have ALTER and DROP privileges for the original table, and CREATE and INSERT privileges for the new table. As of MySQL 8.0.13, you can rename tables locked with a ...
https://dev.mysql.com/doc/refman/8.0/en/show-engines.html
SHOW [STORAGE] ENGINES SHOW ENGINES displays status information about the server's storage engines. This is particularly useful for checking whether a storage engine is supported, or to see what the default engine is. For information about MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/show-replica-status.html
SHOW {REPLICA | SLAVE} STATUS [FOR CHANNEL channel] This statement provides status information on essential parameters of the replica threads. From MySQL 8.0.22, use SHOW REPLICA STATUS in place of SHOW SLAVE STATUS, which is deprecated from that ...
https://dev.mysql.com/doc/refman/8.0/en/show-warnings.html
SHOW WARNINGS [LIMIT [offset,] row_count] SHOW COUNT(*) WARNINGS SHOW WARNINGS is a diagnostic statement that displays information about the conditions (errors, warnings, and notes) resulting from executing a statement in the current session.