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https://dev.mysql.com/doc/refman/8.4/en/bit-type.html
The maximum combined size of all BIT columns used in a given NDB table must not exceed 4096 bits. The BIT data type is used to store bit values. If you assign a value to a BIT(M) column that is less than M bits long, the value is padded on the left ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-statement-histogram-summary-tables.html
Each statement histogram summary table has these summary columns containing aggregated values: BUCKET_TIMER_LOW, BUCKET_TIMER_HIGH A bucket counts statements that have a latency, in picoseconds, measured between BUCKET_TIMER_LOW and ... The ...To ...
https://dev.mysql.com/doc/ndbapi/en/mccj-clusterj-clusterjtableexception.html
This includes "Table Not Found" with no associated errors, as when Cluster/J attempts to get metadata for a named table, but the named table is not defined in NDB, and no other errors are reported. It also includes "Table Not Found" with some ...
https://dev.mysql.com/doc/connectors/en/connector-j-upgrading-to-8.0.html
serverTimezone is now an alias for the connection property connectionTimeZone, which has replaced serverTimezone. Upgrading an application developed for Connector/J 5.1 to use Connector/J 8.0 and beyond might require certain changes to your code or ...
Oracle Enterprise Manager for MySQL Database User's Guide :: 6.43 Sys Schema User Statistics Metrics
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-metric-sysschema-userstatistics-category.html
File IO Latency The total wait time of timed file IO events for the user. Statement Avg Latency The average wait time per timed statement for the user. Statement Latency The total wait time of timed statements for the user. Lists the Sys Schema ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-socket-instances-table.html
The socket_instances table provides a real-time snapshot of the active connections to the MySQL server. Information available in this table provides a real-time snapshot of the active connections to the server. Wait times for active sockets are ...
https://dev.mysql.com/doc/refman/8.4/en/replication-threads-monitor-main.html
row *************************** Id: 2 User: root Host: localhost:32931 db: NULL Command: Binlog Dump Time: 94 State: Has sent all binlog to slave; waiting for binlog to be updated Info: NULL Here, thread 2 is a Binlog Dump thread that services a ...
https://dev.mysql.com/doc/refman/8.4/en/sys-host-summary.html
statement_latency The total wait time of timed statements for the host. statement_avg_latency The average wait time per timed statement for the host. file_io_latency The total wait time of timed file I/O events for the host. These views summarize ...
https://dev.mysql.com/doc/refman/8.4/en/sys-user-summary.html
statement_latency The total wait time of timed statements for the user. statement_avg_latency The average wait time per timed statement for the user. file_io_latency The total wait time of timed file I/O events for the user. These views summarize ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/mysqlbackup.full.html
Putting the options into a configuration file can simplify backup administration for you: for example, putting port information into a configuration file, you can avoid the need to edit your backup scripts each time the database instance switches to ... Most backup strategies start with a complete backup of the MySQL server, from which you can restore all databases and ...