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https://dev.mysql.com/doc/refman/8.0/en/sys-ps-setup-show-disabled-instruments.html
Displays all currently disabled Performance Schema instruments. This might be a long list. Parameters None. Example mysql> CALL sys.ps_setup_show_disabled_instruments()\G *************************** 1. row *************************** ...
https://dev.mysql.com/doc/refman/8.0/en/sys-ps-setup-show-enabled-consumers.html
Example mysql> CALL sys.ps_setup_show_enabled_consumers(); +-----------------------------+ | enabled_consumers | +-----------------------------+ | events_statements_current | | events_statements_history | | events_transactions_current | | ...
https://dev.mysql.com/doc/refman/8.0/en/sys-ps-setup-show-enabled-instruments.html
Displays all currently enabled Performance Schema instruments. This might be a long list. Parameters None. Example mysql> CALL sys.ps_setup_show_enabled_instruments()\G *************************** 1. row *************************** ...
https://dev.mysql.com/doc/refman/8.0/en/sys-ps-truncate-all-tables.html
Truncates all Performance Schema summary tables, resetting all aggregated instrumentation as a snapshot. Parameters in_verbose BOOLEAN: Whether to display each TRUNCATE TABLE statement before executing it. Example mysql> CALL ...
https://dev.mysql.com/doc/refman/8.0/en/statement-caching.html
(The sum of the number of prepared statements across all sessions.) Stored programs (stored procedures and functions, triggers, and events). The stored_program_cache system variable indicates the approximate number of stored programs the server ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-javascript.html
This quick-start guide provides instructions to begin prototyping document store applications interactively with MySQL Shell. The Document Store is accessed using X DevAPI, and MySQL Shell provides this API in both JavaScript and Python. X DevAPI ...The guide includes the following topics: Introduction to MySQL functionality, MySQL Shell, and the world_x example ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-python.html
This quick-start guide provides instructions to begin prototyping document store applications interactively with MySQL Shell. MySQL Shell includes X DevAPI, implemented in both JavaScript and Python, which enables you to connect to the MySQL server ...The guide includes the following topics: Introduction to MySQL functionality, MySQL Shell, and the world_x example ...
https://dev.mysql.com/doc/refman/8.0/en/sys-schema-functions.html
The following sections describe sys schema stored functions. ...
https://dev.mysql.com/doc/refman/8.0/en/temporary-files.html
On Unix, MySQL uses the value of the TMPDIR environment variable as the path name of the directory in which to store temporary files. If TMPDIR is not set, MySQL uses the system default, which is usually /tmp, /var/tmp, or /usr/tmp. On Windows, ...
https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html
These include DML and DDL operations on tables, views, stored procedures, and stored functions, as well as LOCK TABLES, FLUSH TABLES WITH READ LOCK, and HANDLER statements. For details, see Section 10.2.1.16, “ORDER BY Optimization” ...Note Some ... The MySQL server maintains many system variables that affect its ...