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https://dev.mysql.com/doc/refman/8.4/en/innodb-information-schema-examples.html
SELECT THREAD_ID, SQL_TEXT FROM performance_schema.events_statements_history WHERE THREAD_ID = 28 ORDER BY EVENT_ID; Correlating InnoDB Transactions with MySQL Sessions Sometimes it is useful to correlate internal InnoDB locking information with the ...Identifying Blocking Transactions It is sometimes helpful to identify which transaction blocks ... This section describes the ...
https://dev.mysql.com/doc/refman/8.4/en/other-vendor-data-types.html
To facilitate the use of code written for SQL implementations from other vendors, MySQL maps data types as shown in the following table. These mappings make it easier to import table definitions from other database systems into MySQL. If you create ...
https://dev.mysql.com/doc/refman/8.4/en/subquery-optimization-with-exists.html
WHERE subquery_where) MySQL evaluates queries “from outside to inside.” That is, it first obtains the value of the outer expression outer_expr, and then runs the subquery and captures the rows that it produces. WHERE subquery_where AND ...
https://dev.mysql.com/doc/refman/8.4/en/using-system-variables.html
The MySQL server maintains many system variables that configure its operation. The client's session variables are initialized at connect time using the current values of the corresponding global variables. To restrict the maximum value to which a ...Section 7.1.8, “Server System Variables”, describes the meaning of these ...
https://dev.mysql.com/doc/extending-mysql/8.4/en/plugin-api-components.html
SQL statements: INSTALL PLUGIN registers a plugin in the mysql.plugin table and loads the plugin code. UNINSTALL PLUGIN unregisters a plugin from the mysql.plugin table and unloads the plugin code. Command-line options and system variables: The ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-replicationreplica-category.html
Checkpoint Period Sets the maximum time (in milliseconds) that is allowed to pass before a checkpoint operation is called to update the status of a multi-threaded replica as shown by SHOW REPLICA STATUS. Init Replica A string to be executed by a ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-triggers.html
If an upgraded replication source server still has old replicas using MySQL versions that do not support multiple triggers, an error occurs on those replicas if a trigger is created on the source for a table that already has a trigger with the same ...It is sufficient to switch to statement-based replication only for those statements where you want this effect, and to use row-based replication the rest of the ...
https://dev.mysql.com/doc/workbench/en/wb-launching-windows.html
To start MySQL Workbench on Windows, select MySQL from the Start menu and then select MySQL Workbench. Alternatively, start MySQL Workbench from the command line, for example: C:\Program Files\MySQL\MySQL Workbench 8.0\mysqlworkbench.exe Use the ...
https://dev.mysql.com/doc/workbench/en/wb-mac-uninstalling.html
To uninstall MySQL Workbench for macOS, locate MySQL Workbench in the Applications folder, right-click, and select Move to Trash. What Is Not Removed By default, uninstalling MySQL Workbench does not remove your Workbench configuration directory.
https://dev.mysql.com/doc/workbench/en/wb-plugins.html
Much of the MySQL Workbench functionality is implemented using plugins; for example, table, view, and routine editors are native C++ plugins, as are the forward and reverse engineering wizards. The Administrator facility in MySQL Workbench is ...