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https://dev.mysql.com/doc/refman/5.7/en/performance-schema-events-stages-history-long-table.html
When the table becomes full, the oldest row is discarded when a new row is added, regardless of which thread generated either row. The events_stages_history_long table contains the N most recent stage events that have ended globally, across all ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-events-statements-history-long-table.html
When the table becomes full, the oldest row is discarded when a new row is added, regardless of which thread generated either row. The events_statements_history_long table contains the N most recent statement events that have ended globally, across ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-events-transactions-history-long-table.html
When the table becomes full, the oldest row is discarded when a new row is added, regardless of which thread generated either row. The events_transactions_history_long table contains the N most recent transaction events that have ended globally, ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-events-waits-history-long-table.html
When the table becomes full, the oldest row is discarded when a new row is added, regardless of which thread generated either row. The events_waits_history_long table contains N the most recent wait events that have ended globally, across all ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-filtering-names.html
Names given for filtering operations can be as specific or general as required. For example, to select all file I/O instruments, it is better to use a pattern that includes the entire instrument name prefix: ... WHERE NAME LIKE 'wait/io/file/%'; ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-quick-start.html
To verify successful initialization, use this statement: mysql> SHOW VARIABLES LIKE 'performance_schema'; +--------------------+-------+ | Variable_name | Value | +--------------------+-------+ | performance_schema | ON | ... This section briefly ...
https://dev.mysql.com/doc/refman/5.7/en/perl-support.html
Although earlier versions are available, they do not support the full functionality of MySQL 5.7. The Perl DBI module provides a generic interface for database access. You can write a DBI script that works with many different database engines ...
https://dev.mysql.com/doc/refman/5.7/en/point-in-time-recovery-positions.html
These are some sample steps to achieve that: Restore the last full backup created before the point-in-time of interest (call it tp, which is 13:00:00 on May 27, 2020 in our example). The last section, Section 7.5.1, “Point-in-Time Recovery Using ...
https://dev.mysql.com/doc/refman/5.7/en/processlist-access.html
To see complete statements, use SHOW FULL PROCESSLIST (or query a diffferent process information source). The following discussion enumerates the sources of process information, the privileges required to see process information, and describes the ...
https://dev.mysql.com/doc/refman/5.7/en/regexp.html
Table 12.14 Regular Expression Functions and Operators Name Description NOT REGEXP Negation of REGEXP REGEXP Whether string matches regular expression RLIKE Whether string matches regular expression A regular expression is a powerful way of ...